Question: researchers conducted a study to evaluate the effectiveness of different...

Researchers conducted a study to evaluate the effectiveness of different study strategies. One part of the study asked students to prepare for a test by practicing math problems. In one condition, students followed the practice math problems by taking a practice quiz. In a second condition, students read a chapter in a textbook on how to complete math problems after they practiced them. All students were then given a math test, and the researchers recorded the number of correct answers.

a. Identify the dependent variable for this study.
b. Identify the independent variable for this study.
c. What scale of measurement is used to measure the dependent variable? And is it discrete or continuous?