Explanatory and Response Variables

Front

What is an explanatory variable?

Back

An explanatory variable (EV) is a variable that is manipulated or categorized to observe its effect on a response variable.

Front

What is a response variable?

Back

A response variable (RV) is the outcome or result that is measured in an experiment or study, influenced by the explanatory variable.

Front

In the relationship between time spent shopping and the number of items bought, which is the response variable?

Back

The number of items bought.

Front

In the relationship between oven temperature and baking time, which is the explanatory variable?

Back

Oven temperature.

Front

If we want to predict a person's age from their IQ score, which variable is the explanatory variable?

Back

IQ Score.

Front

In a study of homework time and mathematics grades, which variable is the response variable?

Back

Grade in mathematics.

Front

True or False: The response variable is the outcome or result of the study.

Back

True.

Front

What is the primary purpose of identifying explanatory and response variables in a study?

Back

To understand the relationship between variables and how one may affect the other.

Front

Give an example of an explanatory variable in a study about exercise and weight loss.

Back

Amount of exercise (e.g., hours per week).

Front

Give an example of a response variable in a study about study habits and test scores.

Back

Test scores.