A researcher investigates the relationship between age (10 years, 12 years, and 14 years) and gender on percentage of body fat. What is (are) the independent variable(s)?
A) Percent body fat and gender
B) Gender and age
C) Age and percent body fat
D) Age

Question

Quizplus · Accepted Answer

The independent variables are the factors that the researcher manipulates or explores to see if they cause an effect on another variable. In this study, age and gender are the independent variables because the researcher is investigating how these factors might influence the percentage of body fat, which is the dependent variable.

A Researcher Investigates the Relationship Between Age (10 Years, 12