Quick Answer: What Are The Different Types Of Variables In Research?

What are the 3 research variables?

Research Variables: Dependent, Independent, Control, Extraneous & Moderator..

What type of variable is age?

Mondal[1] suggests that age can be viewed as a discrete variable because it is commonly expressed as an integer in units of years with no decimal to indicate days and presumably, hours, minutes, and seconds.

What are key variables in a research study?

The key variables are the terms to be operationally defined if an Operational Definition of Terms section is necessary. The key variables provide focus to the Methods section. The Instrument will measure the key variables. These key variables must be directly measured or manipulated for the research study to be valid.

What are the types of variables in quantitative research?

Understanding Quantitative VariablesDemographic Variables. Social workers are often interested in what we call demographic variables. … Independent and Dependent Variables. … Categorical Variables. … Ordinal Variables. … Interval Variables. … The Special Case of Income. … The Special Case of Age. … Alphanumeric Variables.More items…

What are the different types of variable?

Types of VariablesBinary Variables. A simple version of a categorical variable is called a binary variable. … Nominal Variables. A categorical variable that has more than two categories to select from is called a nominal variable. … Ordinal Variables.

What is used for comparison?

Controls or Controlled Variables Quantities that a scientist wants to remain constant. A part of the experiment that is not being tested and is used for comparison of the experimental results. A control group should be used when conducting an experiment.

How do you identify independent and dependent variables?

Independent and dependent variablesThe independent variable is the cause. Its value is independent of other variables in your study.The dependent variable is the effect. Its value depends on changes in the independent variable.

What is the importance of variables in research?

2.4 The importance between dependent and independent variables. The importance of dependent and independent variables is that they guide the researchers to per sue their studies with maximum curiosity. Dependent and independent variables are important because they drive the research process.

What kind of variable is gender?

A categorical variable (sometimes called a nominal variable) is one that has two or more categories, but there is no intrinsic ordering to the categories. For example, gender is a categorical variable having two categories (male and female) and there is no intrinsic ordering to the categories.

What are the 3 types of variables?

An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist.

What are the two types of qualitative variables?

Qualitative variables are divided into two types: nominal and ordinal.

What are the 5 variables?

There are six common variable types:DEPENDENT VARIABLES.INDEPENDENT VARIABLES.INTERVENING VARIABLES.MODERATOR VARIABLES.CONTROL VARIABLES.EXTRANEOUS VARIABLES.

What are the 4 types of scales?

The Four Scales of Measurement. Data can be classified as being on one of four scales: nominal, ordinal, interval or ratio. Each level of measurement has some important properties that are useful to know.

What are the 2 types of variables?

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).

What are the 4 variables?

Variables are the factors, traits, and conditions you can modify and measure. You’ll find different variables in all types of subjects. But, the most common variables found in a science experiment include dependent, independent, and controlled.

What is variable and its types?

Common Types of Variables. Categorical variable: variables than can be put into categories. … Dependent variable: the outcome of an experiment. As you change the independent variable, you watch what happens to the dependent variable. Discrete variable: a variable that can only take on a certain number of values.

What type of variable is birth month?

Since there are exactly 12 possible birth months, it is discrete, and can be categorical. It is qualitative, as it describes an attribute or quality of the subject, namely the birth month.