An instructor investigates whether the end of the chapter questions aid test performance by randomly assigning participants to one of two groups.One group completes half the questions,and another completes all the questions.Performance on a test is measured.The instructor should ask the question:
A)Does completing all the questions produce high test performance?
B)Do students prefer to complete half the questions or all the questions?
C)Are there consistent changes in the amount of questions answered as a function of test performance?
D)Are there consistent changes in test performance as a function of number of questions answered?

Question

Quizplus · Accepted Answer

The experiment aims to investigate whether the end-of-chapter questions aid test performance, so the most relevant question to ask is whether there are consistent changes in test performance as a function of the number of questions answered.

An Instructor Investigates Whether the End of the Chapter Questions