Question

sam wanted to know if the color of the chair you sat in when taking a test affected your test grade. what is the dependent variable? age of students color of chair grade on test

Explanation:

In an experiment, the dependent variable is what is being measured or affected. Here, Sam is testing if chair color affects test grade, so the grade (what's affected) is the dependent variable. "Age of students" is irrelevant, and "Color of chair" is the independent variable (the one manipulated).

Answer:

Grade on test