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Variables in Research – Definition, Types and Examples

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Variables in Research

Variables in Research

Definition:

In Research, Variables refer to characteristics or attributes that can be measured, manipulated, or controlled. They are the factors that researchers observe or manipulate to understand the relationship between them and the outcomes of interest.

Types of Variables in Research

Types of Variables in Research are as follows:

Independent Variable

This is the variable that is manipulated by the researcher. It is also known as the predictor variable, as it is used to predict changes in the dependent variable. Examples of independent variables include age, gender, dosage, and treatment type.

Dependent Variable

This is the variable that is measured or observed to determine the effects of the independent variable. It is also known as the outcome variable, as it is the variable that is affected by the independent variable. Examples of dependent variables include blood pressure, test scores, and reaction time.

Confounding Variable

This is a variable that can affect the relationship between the independent variable and the dependent variable. It is a variable that is not being studied but could impact the results of the study. For example, in a study on the effects of a new drug on a disease, a confounding variable could be the patient’s age, as older patients may have more severe symptoms.

Mediating Variable

This is a variable that explains the relationship between the independent variable and the dependent variable. It is a variable that comes in between the independent and dependent variables and is affected by the independent variable, which then affects the dependent variable. For example, in a study on the relationship between exercise and weight loss, the mediating variable could be metabolism, as exercise can increase metabolism, which can then lead to weight loss.

Moderator Variable

This is a variable that affects the strength or direction of the relationship between the independent variable and the dependent variable. It is a variable that influences the effect of the independent variable on the dependent variable. For example, in a study on the effects of caffeine on cognitive performance, the moderator variable could be age, as older adults may be more sensitive to the effects of caffeine than younger adults.

Control Variable

This is a variable that is held constant or controlled by the researcher to ensure that it does not affect the relationship between the independent variable and the dependent variable. Control variables are important to ensure that any observed effects are due to the independent variable and not to other factors. For example, in a study on the effects of a new teaching method on student performance, the control variables could include class size, teacher experience, and student demographics.

Continuous Variable

This is a variable that can take on any value within a certain range. Continuous variables can be measured on a scale and are often used in statistical analyses. Examples of continuous variables include height, weight, and temperature.

Categorical Variable

This is a variable that can take on a limited number of values or categories. Categorical variables can be nominal or ordinal. Nominal variables have no inherent order, while ordinal variables have a natural order. Examples of categorical variables include gender, race, and educational level.

Discrete Variable

This is a variable that can only take on specific values. Discrete variables are often used in counting or frequency analyses. Examples of discrete variables include the number of siblings a person has, the number of times a person exercises in a week, and the number of students in a classroom.

Dummy Variable

This is a variable that takes on only two values, typically 0 and 1, and is used to represent categorical variables in statistical analyses. Dummy variables are often used when a categorical variable cannot be used directly in an analysis. For example, in a study on the effects of gender on income, a dummy variable could be created, with 0 representing female and 1 representing male.

Extraneous Variable

This is a variable that has no relationship with the independent or dependent variable but can affect the outcome of the study. Extraneous variables can lead to erroneous conclusions and can be controlled through random assignment or statistical techniques.

Latent Variable

This is a variable that cannot be directly observed or measured, but is inferred from other variables. Latent variables are often used in psychological or social research to represent constructs such as personality traits, attitudes, or beliefs.

Moderator-mediator Variable

This is a variable that acts both as a moderator and a mediator. It can moderate the relationship between the independent and dependent variables and also mediate the relationship between the independent and dependent variables. Moderator-mediator variables are often used in complex statistical analyses.

Variables Analysis Methods

There are different methods to analyze variables in research, including:

  • Descriptive statistics: This involves analyzing and summarizing data using measures such as mean, median, mode, range, standard deviation, and frequency distribution. Descriptive statistics are useful for understanding the basic characteristics of a data set.
  • Inferential statistics : This involves making inferences about a population based on sample data. Inferential statistics use techniques such as hypothesis testing, confidence intervals, and regression analysis to draw conclusions from data.
  • Correlation analysis: This involves examining the relationship between two or more variables. Correlation analysis can determine the strength and direction of the relationship between variables, and can be used to make predictions about future outcomes.
  • Regression analysis: This involves examining the relationship between an independent variable and a dependent variable. Regression analysis can be used to predict the value of the dependent variable based on the value of the independent variable, and can also determine the significance of the relationship between the two variables.
  • Factor analysis: This involves identifying patterns and relationships among a large number of variables. Factor analysis can be used to reduce the complexity of a data set and identify underlying factors or dimensions.
  • Cluster analysis: This involves grouping data into clusters based on similarities between variables. Cluster analysis can be used to identify patterns or segments within a data set, and can be useful for market segmentation or customer profiling.
  • Multivariate analysis : This involves analyzing multiple variables simultaneously. Multivariate analysis can be used to understand complex relationships between variables, and can be useful in fields such as social science, finance, and marketing.

Examples of Variables

  • Age : This is a continuous variable that represents the age of an individual in years.
  • Gender : This is a categorical variable that represents the biological sex of an individual and can take on values such as male and female.
  • Education level: This is a categorical variable that represents the level of education completed by an individual and can take on values such as high school, college, and graduate school.
  • Income : This is a continuous variable that represents the amount of money earned by an individual in a year.
  • Weight : This is a continuous variable that represents the weight of an individual in kilograms or pounds.
  • Ethnicity : This is a categorical variable that represents the ethnic background of an individual and can take on values such as Hispanic, African American, and Asian.
  • Time spent on social media : This is a continuous variable that represents the amount of time an individual spends on social media in minutes or hours per day.
  • Marital status: This is a categorical variable that represents the marital status of an individual and can take on values such as married, divorced, and single.
  • Blood pressure : This is a continuous variable that represents the force of blood against the walls of arteries in millimeters of mercury.
  • Job satisfaction : This is a continuous variable that represents an individual’s level of satisfaction with their job and can be measured using a Likert scale.

Applications of Variables

Variables are used in many different applications across various fields. Here are some examples:

  • Scientific research: Variables are used in scientific research to understand the relationships between different factors and to make predictions about future outcomes. For example, scientists may study the effects of different variables on plant growth or the impact of environmental factors on animal behavior.
  • Business and marketing: Variables are used in business and marketing to understand customer behavior and to make decisions about product development and marketing strategies. For example, businesses may study variables such as consumer preferences, spending habits, and market trends to identify opportunities for growth.
  • Healthcare : Variables are used in healthcare to monitor patient health and to make treatment decisions. For example, doctors may use variables such as blood pressure, heart rate, and cholesterol levels to diagnose and treat cardiovascular disease.
  • Education : Variables are used in education to measure student performance and to evaluate the effectiveness of teaching strategies. For example, teachers may use variables such as test scores, attendance, and class participation to assess student learning.
  • Social sciences : Variables are used in social sciences to study human behavior and to understand the factors that influence social interactions. For example, sociologists may study variables such as income, education level, and family structure to examine patterns of social inequality.

Purpose of Variables

Variables serve several purposes in research, including:

  • To provide a way of measuring and quantifying concepts: Variables help researchers measure and quantify abstract concepts such as attitudes, behaviors, and perceptions. By assigning numerical values to these concepts, researchers can analyze and compare data to draw meaningful conclusions.
  • To help explain relationships between different factors: Variables help researchers identify and explain relationships between different factors. By analyzing how changes in one variable affect another variable, researchers can gain insight into the complex interplay between different factors.
  • To make predictions about future outcomes : Variables help researchers make predictions about future outcomes based on past observations. By analyzing patterns and relationships between different variables, researchers can make informed predictions about how different factors may affect future outcomes.
  • To test hypotheses: Variables help researchers test hypotheses and theories. By collecting and analyzing data on different variables, researchers can test whether their predictions are accurate and whether their hypotheses are supported by the evidence.

Characteristics of Variables

Characteristics of Variables are as follows:

  • Measurement : Variables can be measured using different scales, such as nominal, ordinal, interval, or ratio scales. The scale used to measure a variable can affect the type of statistical analysis that can be applied.
  • Range : Variables have a range of values that they can take on. The range can be finite, such as the number of students in a class, or infinite, such as the range of possible values for a continuous variable like temperature.
  • Variability : Variables can have different levels of variability, which refers to the degree to which the values of the variable differ from each other. Highly variable variables have a wide range of values, while low variability variables have values that are more similar to each other.
  • Validity and reliability : Variables should be both valid and reliable to ensure accurate and consistent measurement. Validity refers to the extent to which a variable measures what it is intended to measure, while reliability refers to the consistency of the measurement over time.
  • Directionality: Some variables have directionality, meaning that the relationship between the variables is not symmetrical. For example, in a study of the relationship between smoking and lung cancer, smoking is the independent variable and lung cancer is the dependent variable.

Advantages of Variables

Here are some of the advantages of using variables in research:

  • Control : Variables allow researchers to control the effects of external factors that could influence the outcome of the study. By manipulating and controlling variables, researchers can isolate the effects of specific factors and measure their impact on the outcome.
  • Replicability : Variables make it possible for other researchers to replicate the study and test its findings. By defining and measuring variables consistently, other researchers can conduct similar studies to validate the original findings.
  • Accuracy : Variables make it possible to measure phenomena accurately and objectively. By defining and measuring variables precisely, researchers can reduce bias and increase the accuracy of their findings.
  • Generalizability : Variables allow researchers to generalize their findings to larger populations. By selecting variables that are representative of the population, researchers can draw conclusions that are applicable to a broader range of individuals.
  • Clarity : Variables help researchers to communicate their findings more clearly and effectively. By defining and categorizing variables, researchers can organize and present their findings in a way that is easily understandable to others.

Disadvantages of Variables

Here are some of the main disadvantages of using variables in research:

  • Simplification : Variables may oversimplify the complexity of real-world phenomena. By breaking down a phenomenon into variables, researchers may lose important information and context, which can affect the accuracy and generalizability of their findings.
  • Measurement error : Variables rely on accurate and precise measurement, and measurement error can affect the reliability and validity of research findings. The use of subjective or poorly defined variables can also introduce measurement error into the study.
  • Confounding variables : Confounding variables are factors that are not measured but that affect the relationship between the variables of interest. If confounding variables are not accounted for, they can distort or obscure the relationship between the variables of interest.
  • Limited scope: Variables are defined by the researcher, and the scope of the study is therefore limited by the researcher’s choice of variables. This can lead to a narrow focus that overlooks important aspects of the phenomenon being studied.
  • Ethical concerns: The selection and measurement of variables may raise ethical concerns, especially in studies involving human subjects. For example, using variables that are related to sensitive topics, such as race or sexuality, may raise concerns about privacy and discrimination.

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  • Types of Variables in Research & Statistics | Examples

Types of Variables in Research & Statistics | Examples

Published on September 19, 2022 by Rebecca Bevans . Revised on June 21, 2023.

In statistical research , a variable is defined as an attribute of an object of study. Choosing which variables to measure is central to good experimental design .

If you want to test whether some plant species are more salt-tolerant than others, some key variables you might measure include the amount of salt you add to the water, the species of plants being studied, and variables related to plant health like growth and wilting .

You need to know which types of variables you are working with in order to choose appropriate statistical tests and interpret the results of your study.

You can usually identify the type of variable by asking two questions:

  • What type of data does the variable contain?
  • What part of the experiment does the variable represent?

Table of contents

Types of data: quantitative vs categorical variables, parts of the experiment: independent vs dependent variables, other common types of variables, other interesting articles, frequently asked questions about variables.

Data is a specific measurement of a variable – it is the value you record in your data sheet. Data is generally divided into two categories:

  • Quantitative data represents amounts
  • Categorical data represents groupings

A variable that contains quantitative data is a quantitative variable ; a variable that contains categorical data is a categorical variable . Each of these types of variables can be broken down into further types.

Quantitative variables

When you collect quantitative data, the numbers you record represent real amounts that can be added, subtracted, divided, etc. There are two types of quantitative variables: discrete and continuous .

Discrete vs continuous variables
Type of variable What does the data represent? Examples
Discrete variables (aka integer variables) Counts of individual items or values.
Continuous variables (aka ratio variables) Measurements of continuous or non-finite values.

Categorical variables

Categorical variables represent groupings of some kind. They are sometimes recorded as numbers, but the numbers represent categories rather than actual amounts of things.

There are three types of categorical variables: binary , nominal , and ordinal variables .

Binary vs nominal vs ordinal variables
Type of variable What does the data represent? Examples
Binary variables (aka dichotomous variables) Yes or no outcomes.
Nominal variables Groups with no rank or order between them.
Ordinal variables Groups that are ranked in a specific order. *

*Note that sometimes a variable can work as more than one type! An ordinal variable can also be used as a quantitative variable if the scale is numeric and doesn’t need to be kept as discrete integers. For example, star ratings on product reviews are ordinal (1 to 5 stars), but the average star rating is quantitative.

Example data sheet

To keep track of your salt-tolerance experiment, you make a data sheet where you record information about the variables in the experiment, like salt addition and plant health.

To gather information about plant responses over time, you can fill out the same data sheet every few days until the end of the experiment. This example sheet is color-coded according to the type of variable: nominal , continuous , ordinal , and binary .

Example data sheet showing types of variables in a plant salt tolerance experiment

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Experiments are usually designed to find out what effect one variable has on another – in our example, the effect of salt addition on plant growth.

You manipulate the independent variable (the one you think might be the cause ) and then measure the dependent variable (the one you think might be the effect ) to find out what this effect might be.

You will probably also have variables that you hold constant ( control variables ) in order to focus on your experimental treatment.

Independent vs dependent vs control variables
Type of variable Definition Example (salt tolerance experiment)
Independent variables (aka treatment variables) Variables you manipulate in order to affect the outcome of an experiment. The amount of salt added to each plant’s water.
Dependent variables (aka ) Variables that represent the outcome of the experiment. Any measurement of plant health and growth: in this case, plant height and wilting.
Control variables Variables that are held constant throughout the experiment. The temperature and light in the room the plants are kept in, and the volume of water given to each plant.

In this experiment, we have one independent and three dependent variables.

The other variables in the sheet can’t be classified as independent or dependent, but they do contain data that you will need in order to interpret your dependent and independent variables.

Example of a data sheet showing dependent and independent variables for a plant salt tolerance experiment.

What about correlational research?

When you do correlational research , the terms “dependent” and “independent” don’t apply, because you are not trying to establish a cause and effect relationship ( causation ).

However, there might be cases where one variable clearly precedes the other (for example, rainfall leads to mud, rather than the other way around). In these cases you may call the preceding variable (i.e., the rainfall) the predictor variable and the following variable (i.e. the mud) the outcome variable .

Once you have defined your independent and dependent variables and determined whether they are categorical or quantitative, you will be able to choose the correct statistical test .

But there are many other ways of describing variables that help with interpreting your results. Some useful types of variables are listed below.

Type of variable Definition Example (salt tolerance experiment)
A variable that hides the true effect of another variable in your experiment. This can happen when another variable is closely related to a variable you are interested in, but you haven’t controlled it in your experiment. Be careful with these, because confounding variables run a high risk of introducing a variety of to your work, particularly . Pot size and soil type might affect plant survival as much or more than salt additions. In an experiment you would control these potential confounders by holding them constant.
Latent variables A variable that can’t be directly measured, but that you represent via a proxy. Salt tolerance in plants cannot be measured directly, but can be inferred from measurements of plant health in our salt-addition experiment.
Composite variables A variable that is made by combining multiple variables in an experiment. These variables are created when you analyze data, not when you measure it. The three plant health variables could be combined into a single plant-health score to make it easier to present your findings.

If you want to know more about statistics , methodology , or research bias , make sure to check out some of our other articles with explanations and examples.

  • Student’s  t -distribution
  • Normal distribution
  • Null and Alternative Hypotheses
  • Chi square tests
  • Confidence interval
  • Cluster sampling
  • Stratified sampling
  • Data cleansing
  • Reproducibility vs Replicability
  • Peer review
  • Likert scale

Research bias

  • Implicit bias
  • Framing effect
  • Cognitive bias
  • Placebo effect
  • Hawthorne effect
  • Hindsight bias
  • Affect heuristic

You can think of independent and dependent variables in terms of cause and effect: an independent variable is the variable you think is the cause , while a dependent variable is the effect .

In an experiment, you manipulate the independent variable and measure the outcome in the dependent variable. For example, in an experiment about the effect of nutrients on crop growth:

  • The  independent variable  is the amount of nutrients added to the crop field.
  • The  dependent variable is the biomass of the crops at harvest time.

Defining your variables, and deciding how you will manipulate and measure them, is an important part of experimental design .

A confounding variable , also called a confounder or confounding factor, is a third variable in a study examining a potential cause-and-effect relationship.

A confounding variable is related to both the supposed cause and the supposed effect of the study. It can be difficult to separate the true effect of the independent variable from the effect of the confounding variable.

In your research design , it’s important to identify potential confounding variables and plan how you will reduce their impact.

Quantitative variables are any variables where the data represent amounts (e.g. height, weight, or age).

Categorical variables are any variables where the data represent groups. This includes rankings (e.g. finishing places in a race), classifications (e.g. brands of cereal), and binary outcomes (e.g. coin flips).

You need to know what type of variables you are working with to choose the right statistical test for your data and interpret your results .

Discrete and continuous variables are two types of quantitative variables :

  • Discrete variables represent counts (e.g. the number of objects in a collection).
  • Continuous variables represent measurable amounts (e.g. water volume or weight).

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10 Types of Variables in Research | Examples | PPT

In any research study, there are variables. Variables are any characteristics that can be measured or observed. There are many great uses for these variables, but it is important to know what they are!

In this article, you will learn the basics of variables and will give you a clear picture of the types of variables that exist in the social sciences and statistics and how they can be used.

Table of Contents

What is a Variable?

In research, variables are the factors that are manipulated to measure their effects on an outcome variable.

Example of Variable

3- For example, if a person’s skin color is the variable in an experiment, its value can range from brown to pale to white, from individual to individual.

10 Types of Variables

Independent variable, example of independent variable, dependent variable.

The dependent variable is a variable that represents the experiment’s outcome. The variable that is measured in order to determine the effect of an independent variable. The dependent variable is the variable being measured.

Example of Dependent Variable

Mediating variable, example of mediating variable.

For example, if income is the independent variable and longevity is the dependent variable, the researcher could postulate that access to quality healthcare is the mediating variable that connects income and longevity.

Moderating Variable

Control variables.

Control variables are those that remain constant throughout the experiment. Variables that are held constant in order to isolate the effect of a given independent variable.

Example of Control Variables

Developing conceptual framework with variables.

Organization learning is IV that is independent variable and innovation is DV dependent Variable.

Lets add moderator between organizational learning and innovation. Take leadership as a moderator as it will strengthen the relationship of IV and DV.

The larger firms need to be more innovative as compared to the smaller firms. So, these variables, by default have impact on firm’s innovation. So, we should control these variables in order to see whether IV, mediator and moderator have an effect on the dependent variable.

Quantitative Variable

Example of quantitative variable, discrete variable, example of discrete variable.

1- As an example, consider the money in your pocket or the funds in your savings account.

Continuous Variable

Example of continuous variable, qualitative variables.

Qualitative variables, often known as categorical variables, are non-numerical values or categories. You can realistically count any numerical variables.

Example of Qualitative Variables

Binary variable.

A binary variable is a variable that can take on only two values, usually 0 and 1. In research, binary variables are often used to represent the presence or absence of something,

Example of Binary Variable

1- To know whether a person has a disease (0 = no, 1 = yes).

 Nominal Variable

Nominal variables are sometimes called categorical variables. Nominal variables are usually coded with numbers, but the numbers do not have any mathematical meaning. In other words, the order of the numbers does not matter.

Ordinal Variable

In research, an ordinal variable is a variable that is used to rank items. They are the groups that are arranged in a particular order. Ordinal variables are often used in surveys.

Example of Ordinal Variable

Extraneous variable.

Extraneous variables are factors that affect the dependent variable but were not originally considered by the researcher while designing the experiment. These unexpected variables can alter the outcomes of a study or how a researcher perceives the results.

Example of Extraneous Variable

Latent variable.

A latent variable is a variable that is not directly observed but is instead inferred from other variables that are observed.

Example of Latent Variable

Confounding variable.

A variable in your experiment that conceals the true influence of another variable. This can occur when another variable is strongly related to a variable of interest but is not controlled in your experiment.

Example of Confounding Variable

1- Suppose there is an association between smoking and lung cancer. If age is a confounder, then this means that older people are more likely to get lung cancer, but they are also more likely to smoke. Therefore, the true association between smoking and lung cancer may be underestimated if age is not taken into account.

Composite Variable

Example of composite variable.

A composite variable could be created by combining the variables “height” and “weight” to create the variable “BMI.”

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Research Variables

Feb 17, 2014

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Research Variables. Research Definitions. An experiment is a process in which an investigator devises two or more different experiences (treatments) for subjects or participants. Involves a control group and one or more treatment groups. Research Variables.

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Presentation Transcript

Research Definitions • An experiment is a process in which an investigator devises two or more different experiences (treatments) for subjects or participants. • Involves a control group and one or more treatment groups

Research Variables • Independent Variable (IV): the controlled variable in a study; hypothesized to have an effect on the dependent variable • In a true experiment, this is an experimental (manipulated) variable. • In a quasi-experiment, this is a subject variable (not subject to manipulation). Experimental Subject

Research Variables • Regardless of type, there will always be two or more levels of the independent variable. • Variable: a characteristic or phenomenon that may take on different values; variables must vary! • The levels of the independent variable can be: • Independent of one another: between-subjects design • Dependent on one another: within-subjects design

Research Variables • Dependent Variable (DV): an outcome of interest that is observed and measured by the researcher; hypothesized to be affected by the independent variable

Defining Research Variables • Operational Definition: a definition of a variable in terms of the operations used to manipulate it or measure it • Must be precise enough that anyone reading a review of your research could replicate your experiment exactly.

Problem Variables • Extraneous (Nuisance) Variables: uncontrolled variables which can affect the experimental outcome • Extraneous variables become confounding variables when their values change systematically along with the independent variable in an experiment.

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Variables

Variables. have a type have an address (in memory) have a value have a name (for now). Variables - name. must start with a-z, A-Z ( _ allowed, but not recommended) other characters may be a-z, A-Z, 0-9, _

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Research Questions, Variables, and Hypotheses

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Developmental Psychology:  Research Issues Intractable Variables

Developmental Psychology: Research Issues Intractable Variables

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Day 5 Variables and measurement scales

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These slides discuss about the concept and definition of variables, variables in research, operationalisation, types and functions of variables and measurement scales.

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Biostatistics is part and parcel of biomedical research. The data from biomedical studies require statistical treatment for its effective presentation and correct interpretation. The choice of appropriate statistical methods to be applied depends upon the kind of data and variables. Different types of variables (characteristics) generate different types of data. Variables can be classified in many ways; qualitative and quantitative, nominal and ordinal or discrete and continuous. Different measurement scales are used to measure different types of variables; nominal & ordinal scales for qualitative and interval & ratio scale for quantitative variables. Different statistical methods/tests are employed for presentation and analysis of different types of data. For qualitative data; percentage, proportions, rate, ratios, standard error of proportions, chi-square test etc. are applied. While mean, range, standard deviation, coefficient of variation, correlation coefficient, etc. are emplo...

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This book aims to help people analyze quantitative information. Before detailing the 'hands-on' analysis we will explore in later chapters, this introductory chapter will discuss some of the background conceptual issues that are precursors to statistical analysis. The chapter begins where most research in fact begins; with research questions. A research question states the aim of a research project in terms of cases of interest and the variables upon which these cases are thought to differ. A few examples of research questions are: 'What is the age distribution of the students in my statistics class?' 'Is there a relationship between the health status of my statistics students and their sex?' 'Is any relationship between the health status and the sex of students in my statistics class affected by the age of the students?' We begin with very clear, precisely stated research questions such as these that will guide the way we conduct research and ensure that we do not end up with a jumble of information that does not create any real knowledge. We need a clear research question (or questions) in mind before undertaking statistical analysis to avoid the situation where huge amounts of data are gathered unnecessarily, and which do not lead to any meaningful results. I suspect that a great deal of the confusion associated with statistical analysis actually arises from imprecision in the research questions that are meant to guide it. It is very difficult to select the relevant type of analysis to undertake, given the many possible analyses we could employ on a given set of data, if we are uncertain of our objectives. If we don't know why we are undertaking research in the first place, then it follows we will not know what to do with research data once we have gathered them. Conversely, if we are clear about the research question(s) we are addressing the statistical techniques to apply follow almost as a matter of course. We can see that each of the research questions above identifies the entities that I wish to investigate. In each question these entities are students in my statistics class, who are thus the units of analysis – the cases of interest – to my study.

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Measurement scale is an important part of data collection, analysis, and presentation. In the data collection and data analysis, statistical tools differ from one data type to another. There are four types of variables, namely nominal, ordinal, discrete, and continuous, and their nature and application are different. Graphs are a common method to visually present and illustrate relationships in the data. There are several statistical diagrams available to present data sets. However, their use depends on our objectives and data types. We should use the appropriate diagram for the data set, which is very useful for easily and quickly communicating summaries and findings to the audience. In the present study, statistical data type and its presentation, which are used in the field of biomedical research, have been discussed.

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Lecture Notes on Research Methodology

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Lecture Notes on Research Methodology

Introduction to Research Methodology

variables in research methodology ppt

Sabine Mendes Lima Moura Issues in Research Methodology PUC – November 2014.

variables in research methodology ppt

Today Concepts underlying inferential statistics

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Richard M. Jacobs, OSA, Ph.D.

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Research Methodology Lecture 1.

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Chapter 12 Inferential Statistics Gay, Mills, and Airasian

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Sample Design.

variables in research methodology ppt

Copyright © 2008 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved. John W. Creswell Educational Research: Planning,

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Chapter 1: Introduction to Statistics

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RESEARCH A systematic quest for undiscovered truth A way of thinking

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Research Methodology.

variables in research methodology ppt

Educational Research: Competencies for Analysis and Application, 9 th edition. Gay, Mills, & Airasian © 2009 Pearson Education, Inc. All rights reserved.

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Research Seminars in IT in Education (MIT6003) Quantitative Educational Research Design 2 Dr Jacky Pow.

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PROCESSING OF DATA The collected data in research is processed and analyzed to come to some conclusions or to verify the hypothesis made. Processing of.

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Chapter 7 Measuring of data Reliability of measuring instruments The reliability* of instrument is the consistency with which it measures the target attribute.

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[Updated 2023] Top 20 PowerPoint Templates to Devise a Systematic Research Methodology

[Updated 2023] Top 20 PowerPoint Templates to Devise a Systematic Research Methodology

Kritika Saini

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Developing a systematic research methodology is essential for conducting effective investigations. It ensures clarity, rigor, validity, replicability, ethical integrity, and efficiency in the research process. It serves as a roadmap that guides researchers through the study, enabling them to generate reliable findings and contribute to the advancement of knowledge in their respective fields.

Research Methodology Templates to Conduct Rigorous and Reliable Research

By following a well-structured approach, you can enhance the efficiency of your research and produce meaningful results. Therefore, SlideTeam brings you a collection of content-ready and custom-made PPT templates to help you save time by providing pre-designed structures and frameworks for research methodologies. You can customize these templates to fit your specific projects, eliminating the need to create a methodology from scratch. 

This time-saving aspect allows you to focus more on the actual research process. Secondly, these ready-made templates provide you with consistency and standardization in methodologies. They ensure that essential elements are included and organized in a logical manner, making it easier for readers and reviewers to understand and evaluate the research. They also serve as a helpful guide, ensuring that researchers cover all necessary components and follow best practices. They provide a clear and structured format for learning about research methodologies and help researchers develop a systematic approach to their work. Overall, research methodology templates streamline the process, enhance consistency, and serve as educational resources for researchers at various levels of expertise.

Browse the collection below and ensure that your methodology is comprehensive and well-written. 

Let's begin!

Want to elevate your creativity? Check out this blog.  

Template 1: Research method PPT Template

Save time and ensure consistency with our research methodology template. Designed to streamline your research process, our content-ready template provides a pre-designed structure and framework for developing your methodology section. Use this actionable PPT to focus more on conducting your research while ensuring that all essential elements are covered and organized in a logical manner. Enhance your efficiency and maintain consistency with our research methodology template. 

ResearchMethod

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Template 2: Research Methodology Process Analysis Template

This is a content-ready PowerPoint template to maximize the effectiveness of your research. This professional and appealing template guides you step-by-step through the research process, from defining your research question to analyzing and interpreting data. With a structured framework in place, you can ensure that your methodology is comprehensive, rigorous, and adheres to best practices. Save time and maintain consistency by using our research methodology process template, empowering you to conduct high-quality research and generate meaningful insights.

Research Methodology

Template 3: Business Research Design and Methodology Template

Accelerate your business research endeavors with our business research methodology proposal template. This comprehensive e template provides a solid framework for crafting a well-structured and persuasive research proposal. Streamline the proposal development process by leveraging our template's pre-designed sections, including problem statement, research objectives, methodology, timeline, and budget. Present your proposal with confidence, knowing that you have followed a proven format and incorporated essential elements. Take your business research to the next level with our business research methodology proposal template. 

Business Research Design and Methodology Proposal

Template 4: Market Share Research Methodology Template

Wish to uncover valuable market insights? Deploy this ready-made PowerPoint template that simplifies the process of analyzing market share data, allowing you to assess your company's performance in relation to competitors. With pre-designed sections for data collection, analysis, and visualization, easily track market trends, identify growth opportunities, and make data-driven decisions. Save time and enhance your market research efforts with our market share research template, empowering you to stay ahead in a competitive business landscape. 

Market Share Research Methodology with Six Pentagonal Steps

Template 5: PESTEL Analysis Research Methodology PPT Template

Gain a comprehensive understanding of your business environment with our pre-designed PESTEL analysis research methodology template. This versatile template provides a structured framework for conducting a thorough analysis of the political, economic, social, technological, environmental, and legal factors impacting your industry or market. Easily identify key trends, opportunities, and risks by utilizing our pre-designed sections and guidance. Streamline your research process and make informed strategic decisions using our PESTEL Analysis research methodology template, ensuring your business stays ahead of the curve.

Pestel Analysis Research Methodology Chart Sample File

Template 6: Research Methodology with 3 Step Process Map PPT Template 

Looking for ways to create a research methodology process? Achieve research success with our content-ready PPT template which simplifies the research journey into three steps. Collect data, conduct research, and evaluate your findings to draw meaningful conclusions. With our template, you'll stay organized and ensure consistency throughout your research process. Maximize your research potential and achieve impactful results using our premium PPT slide.

Research Methodology with 3 Step Process Map

Template 7: Rational Sections Research Methodology Template

This is a well-structured PowerPoint template that features distinct sections that guide you through every aspect of your research. From clearly defining research objectives to selecting appropriate data collection methods, analyzing data, and interpreting results, this PPT slide ensures you cover all essential components. With pre-designed sections for literature review, research design, data analysis, and more, you can streamline your research process and maintain consistency. Harness the potential of each section in our research methodology template to conduct rigorous and impactful studies. 

Rational Sections Research Methodology Supplementary Program

Template 8: Research Methodology with Analysis PPT Template 

Unleash the power of data-driven insights with our ready-made PPT template. This all-inclusive template integrates research methodology and data analysis, providing a comprehensive framework for conducting robust studies. From defining research objectives to data collection, cleaning, and analysis, our template guides you through each step of the research process. With pre-designed sections for statistical analysis, visualizations, and interpretation, uncover meaningful patterns and trends in your data. Elevate your research endeavors with this actionable template and unlock valuable insights for informed decision-making.

Research Methodology with Analysis and Online Survey

Template 9: Research Methodology Workflow PPT Template 

Wish to optimize your research workflow? Use this content-ready PPT template that simplifies the process of planning, executing, and documenting your research methodology. With pre-designed sections for each stage, including research question formulation, data collection, analysis, and reporting, this pre-designed template ensures a structured and organized approach. Streamline your workflow, enhance collaboration, and maintain consistency throughout your research project with our professional and appealing PPT slide. 

Research Methodology Showing Identify Aims Test Workflow

Template 10: Research Methodology with Literature Review PPT Template

Deploy this content-ready PowerPoint template to elevate your research that showcases crucial elements of literature review, providing a seamless framework for conducting rigorous investigations. With this pre-designed PPT template exhibiting research objectives, appropriate methods, a thorough literature review, and findings with existing knowledge, you can save time, maintain consistency, and produce impactful research. Leverage our PPT template to uncover valuable insights and contribute to the advancement of knowledge in your field.

Research Methodology with Literature Review and Report Findings

Template 11: Framework of Exploratory Research Methodology PPT Template  

Embark on a journey of discovery and provide a structured framework for conducting exploratory research using our content-ready template. Delve into uncharted territories and uncover new insights by incorporating this premium template. Use this PPT slide to identify problem, data collection methods, analysis techniques, and interpretation. This PowerPoint template guides you through the exploratory research process. Unlock novel perspectives, generate hypotheses, and fuel innovation using our ready-made slide.

Framework of Exploratory Research Methodology

Template 12: 5 Steps Indicating Research Methodology Process PPT Template

Looking for ways to streamline your research journey? Deploy this content-ready PowerPoint template to simplify the research process into five clear and manageable steps: Define, Design, Collect, Analyze, and Report. Each step is accompanied by pre-designed sections, ensuring a systematic approach to your research project. From formulating research questions to presenting your findings, this premium template provides a structured framework for success. Save time, stay organized, and achieve research excellence with this ready-made template.

5 Steps indicating Research Methodology Process

Template 13: Graph of Primary Research Methodology PPT Template  

Experience the power of data-driven insights with this professional and appealing PPT template. Designed for primary research, this template offers a comprehensive framework that includes field trials, observations, interviews, focus groups, and surveys. Easily visualize and navigate through each stage of your research process, from data collection to analysis. Organize and document your findings to maximize the effectiveness of your primary research and make informed decisions using our ready to use PowerPoint template. 

Graph of Primary Research Methodology

Template 14: Research Methodology Framework of Market Analysis PPT Template 

Use this content-ready PPT template tailored specifically for market analysis to guide your research process. From defining research objectives to selecting appropriate data collection methods, analyzing market trends, and drawing meaningful conclusions, our template covers all essential aspects. Streamline your market analysis, maintain consistency, and make data-driven decisions with ease using our Research Methodology Framework for Market Analysis template. Stay ahead of the competition and capitalize on market opportunities. 

Research Methodology Framework of Market Analysis

Template 15: Four Steps Process of Research Methodology PPT Template 

This is a ready to use PPT template that provides you a structured and organized approach for your research methodology It includes a four-step process: Project Design, Data Acquisition, Data Analysis, and Strategy Recommendation to plan your research project, gather relevant data, analyze it using appropriate techniques, and derive actionable strategy recommendations. Save time and enhance the effectiveness of your research with our premium template, empowering you to make informed decisions and achieve impactful results.

Four Steps Process of Research Methodology

Template 16: Market Research Methodology and Techniques PPT Template 

This comprehensive template equips you with a range of methodologies and techniques to effectively study and understand your target market. From surveys and interviews to focus groups and data analysis, this premium template covers a wide array of research methods. It provides pre-designed sections for each technique, guiding you through the research process and ensuring consistency.

Market Research Methodology and Techniques

Template 17: Quantitative Market Research Methodology Framework PPT Template 

This template serves as a guide to direct your market research endeavors. Showcasing each stage of the research process, including research design, data collection methods, analysis techniques, and reporting, this template ensures a systematic approach to quantitative market research. Create professional and engaging presentations, highlighting your research methodology with ease.

Quantitative Market Research Methodology Framework

Template 18: Process Tree for Research Methodology PPT Template 

Use this content-ready PPT template that outlines the sequential steps involved in conducting a research study. It serves as a roadmap, depicting the flow of activities from research question formulation to data collection, analysis, and interpretation. Like the branches of a tree, each step branches out into sub-steps and tasks, highlighting the interconnectedness and dependencies. Grab this ready-made PowerPoint template that provides you with a clear and engaging overview, ensuring researchers stay organized and follow a systematic approach throughout their research journey.

Process Tree for Research Methodology

Template 19: Flowchart for Research Methodology PPT Template

Deploy this pre-designed PPT that illustrates the logical flow of steps and decisions involved in conducting a research study. Similar to a roadmap, it presents a series of interconnected boxes or shapes connected by arrows, representing the sequential progression of activities. Each box represents a specific task or process, and the arrows indicate the direction of the flow. Incorporate this PPT slide to help your audience understand the research process at a glance, making it engaging and crisp to follow the logical progression of their study.

Flowchart for Research Methodology with Design and Development

Template 20: Eleven Stage Process for Research Methodology PPT Template  

Unleash the power of simplicity in research methodology using our PPT template that eliminates complexity and guides you through each step effortlessly. From defining objectives to data analysis, we've got you covered. Simplify your research journey and unlock meaningful insights with ease.

Eleven Stage Process for Research Methodology

Our content-ready and custom-made templates empower researchers to streamline their work, save time, and maintain consistency. With its comprehensive structure and pre-designed sections, it simplifies the research process, ensuring all essential components are covered. Maximize your research potential and achieve impactful results with our user-friendly template.

Download now!

FAQs on Research Methodology

What are the four types of research methodology.

The four types of research methodology commonly used in academic and scientific studies are:

Descriptive Research: This type aims to describe and document the characteristics, behavior, and phenomena of a particular subject or population. It focuses on gathering information and providing an accurate portrayal of the research topic.

Experimental Research: This approach involves the manipulation and control of variables to establish cause-and-effect relationships. It often includes the use of control groups and random assignment to test hypotheses and draw conclusions.

Correlational Research: This methodology examines the statistical relationship between two or more variables without direct manipulation. It aims to identify patterns and associations between variables to understand their degree of relationship.

Qualitative Research: This approach focuses on exploring and understanding the subjective experiences, perspectives, and meanings attributed by individuals or groups. It involves methods such as interviews, observations, and analysis of textual or visual data to uncover insights and interpretations.

What are the 3 main methodological types of research?

The three main methodological types of research are:

Quantitative Research: This approach involves the collection and analysis of numerical data to uncover patterns, relationships, and statistical trends. It focuses on objective measurements, often utilizing surveys, experiments, and statistical analysis to quantify and generalize findings.

Qualitative Research: This methodology aims to understand the subjective experiences, meanings, and social contexts associated with a research topic. It relies on non-numerical data, such as interviews, observations, and textual analysis, to explore in-depth perspectives, motivations, and behavior.

Mixed-Methods Research: This type of research integrates both quantitative and qualitative approaches, combining the strengths of both methodologies. It involves collecting and analyzing both numerical and non-numerical data to gain a comprehensive understanding of the research problem. Mixed-methods research can provide a more nuanced picture by capturing both statistical trends and rich contextual information.

What are the 7 basic research methods?

There are several research methods commonly used in academic and scientific studies. While the specific categorization may vary, here are seven basic research methods:

Experimental Research: Involves controlled manipulation of variables to establish cause-and-effect relationships.

Survey Research: Utilizes questionnaires or interviews to collect data from a sample population to gather insights and opinions.

Observational Research: Involves systematic observation of subjects in their natural environment to gather qualitative or quantitative data.

Case Study Research: In-depth analysis of a particular individual, group, or phenomenon to gain insights and generate detailed descriptions.

Correlational Research: Examines the statistical relationship between variables to identify patterns and associations.

Qualitative Research: Focuses on understanding subjective experiences, meanings, and social contexts through interviews, observations, and textual analysis.

Action Research: Involves collaboration between researchers and participants to address real-world problems and generate practical solutions.

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  1. Types of variables in research

    Types of variables in research - Download as a PDF or view online for free. ... Research design and types of research design final ppt. ... inferential, experimental, simulation, and qualitative methods. Research methods refer to specific techniques for gathering data while research methodology explains the overall process. Variables in research.

  2. Variables for research methodology and its types

    This document defines and provides examples of different types of variables that may be used in research. It discusses independent variables, dependent variables, intervening variables, extraneous variables, active variables, attribute variables, quantitative variables, qualitative variables, continuous variables, discrete variables, constant ...

  3. Variables in research

    Simply defined as, variable is a concept that varies. It can be in Quantity, Intensity, Amount and Types. It takes two or more values. Variable is a measurable characteristics that varies. It may change from group to group, person to person or within person over time. In research science, variable refer to factor or condition that can change ...

  4. Variables in Research

    Categorical Variable. This is a variable that can take on a limited number of values or categories. Categorical variables can be nominal or ordinal. Nominal variables have no inherent order, while ordinal variables have a natural order. Examples of categorical variables include gender, race, and educational level.

  5. Scientific Method Presentation

    The Scientific Method involves a series of steps that are used to investigate a natural occurrence. We shall take a closer look at these steps and the terminology you will need to understand before you start a science project. Problem/Question. Observation/Research. Formulate a Hypothesis.

  6. PDF Chapter 2: Quantitative, Qualitative, and Mixed Research Lecture Notes

    This chapter is our introduction to the three major research methodology paradigms. A paradigm is a perspective based on a set of assumptions, concepts, and values that are held and practiced by a community of researchers. For the most of the 20th century the quantitative paradigm was dominant. During the 1980s, the qualitative paradigm came of ...

  7. Chapter 5: Variables and measurement IN research.

    1 Chapter 5: Variables and measurement IN research. 2 Dependent Variables Dependent/response variable: a variable that is measured or observed from an individual. Reliability: the degree to which the results of a study can be replicated under similar conditions. Operational definition: the definition of an abstract concept used by a researcher ...

  8. PPT

    Presentation Transcript. Quantitative Research Methodology Session 2 Variables, Population, and Sampling. Variable A characteristic that varies • Independent Variable "the factor that is measured, manipulated, or selected by the experimenter to determine its relationship with an observed phenomenon" (Tuckman, 1999, p.93) Variable (2) 2.

  9. Types of Variables in Research & Statistics

    Examples. Discrete variables (aka integer variables) Counts of individual items or values. Number of students in a class. Number of different tree species in a forest. Continuous variables (aka ratio variables) Measurements of continuous or non-finite values. Distance.

  10. A COURSE IN RESEARCH METHODOLOGY 2018.pptx

    A COURSE IN RESEARCH METHODOLOGY 2018.pptx. Naimi AMARA. This teaching paper is an introdcution to the field of research methodology as it enables beginners (students) to understand basic things about research, research techniques , research design and research procedure. The general aim behind this teaching paper is to facilitate the task of ...

  11. Research Variables

    The document discusses different types of variables that can be studied in educational research. It defines an independent variable as a variable that is manipulated by the researcher to determine its effect on a dependent variable. A dependent variable is the observed response or outcome measured to assess the impact of changes to the ...

  12. 4. VARIABLES AND TYPES OF VARIABLES.ppt

    For Example Research studies indicate that successful new product development has an influence on the stock market price of a company. That is, the more successful the new product turns out to be, the higher will be the stock market price of that firm. Therefore, the success of the New product is the independent variable, and stock market price the dependent variable.

  13. 10 Types of Variables in Research

    Organization is an entity. Name, Size, Type, Learning, Innovation are the attributes of an organization. So all these attributes are the variables. 2- Other example is that Employee is also an entity. Name, Age, Gender, Experience, Stress level, satisfaction, Performance are the attributes of an employee.

  14. PPT RESEARCH METHODS

    Research. a. the systematic investigation into and study of materials, sources, etc, in order to establish facts and reach new conclusions. b. an endeavour to discover new or collate old facts etc by the scientific study of a subject or by a course of critical investigation. [Oxford Concise Dictionary] * What is Research?

  15. PPT

    Presentation Transcript. Research Variables. Research Definitions • An experiment is a process in which an investigator devises two or more different experiences (treatments) for subjects or participants. • Involves a control group and one or more treatment groups. Research Variables • Independent Variable (IV): the controlled variable in ...

  16. Research Methodology Lecture No : 10 (Measurement of Variables/Scales

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  17. Research Variables

    Variables are the key elements that researchers manipulate, measure, or observe to understand the relationships and patterns within a given phenomenon. By comprehensively examining research variables, researchers can enhance the quality, validity, and reliability of their studies, leading to more accurate and insightful conclusions.

  18. Day 5 Variables and measurement scales

    Prabhaker Mishra. Measurement scale is an important part of data collection, analysis, and presentation. In the data collection and data analysis, statistical tools differ from one data type to another. There are four types of variables, namely nominal, ordinal, discrete, and continuous, and their nature and application are different.

  19. Lecture Notes on Research Methodology

    New York: Prentice-Hall, 1960. Download ppt "Lecture Notes on Research Methodology". 1 Research Methodology: An Introduction: MEANING OF RESEARCH: Research in common parlance refers to a search for knowledge. Once can also define research as a scientific & systematic search for pertinent information on a specific topic.

  20. PPT

    Quantitative Research Methodology Session 2 Variables, Population, and Sampling Variable A characteristic that varies Independent Variable the factor that is ... - A free PowerPoint PPT presentation (displayed as an HTML5 slide show) on PowerShow.com - id: 483cab-NDg0M

  21. variable in research

    variable in research. This document defines and provides examples of different types of variables: - Dependent variables are affected by independent variables. Independent variables are presumed to influence other variables. - Intervening/mediating variables are caused by the independent variable and themselves cause the dependent variable.

  22. [Updated 2023] Top 20 PowerPoint Templates for a Systematic Research

    Template 13: Graph of Primary Research Methodology PPT Template. Experience the power of data-driven insights with this professional and appealing PPT template. Designed for primary research, this template offers a comprehensive framework that includes field trials, observations, interviews, focus groups, and surveys.

  23. Research methodology

    3. Research The systematic, rigorous investigation of a situation or problem in order to generate new knowledge or validate existing knowledge. An endeavour to discover new or collate old facts etc by the scientific study of a subject or by a course of critical investigation. 4.