Question

Kaylee wants to test her hypothesis that she performs better on tests after getting more sleep. In which way will she best be able to do this?
A. by analyzing her test scores when she gets the same amount of sleep
B. by asking her friends if sleep affects their test scores
C. by analyzing her average test scores after nights with different amounts of sleep
D. by reading online about the relationship between sleep and test scores

Answer 1

The best answer is probably letter C