Consider the example of Roy, a researcher who studies the role of worked examples in engineering education. He measures students test performance and ratings of their instructors. He randomly assigns classes to condition. The independent variable in Roy's research is
A) engineering education.
B) worked example exposure.
C) test performance.
D) teacher ratings.

Question

Quizplus · Accepted Answer

The independent variable in Roy's research is the exposure to worked examples, as this is the variable that is being manipulated and tested in the study. The other variables, such as engineering education, test performance, and teacher ratings, are either background variables or dependent variables that are being measured in relation to the independent variable.

Consider the Example of Roy, a Researcher Who Studies the Role