A teacher is interested in whether conducting online quizzes about a chapter before discussing the chapter in class will improve students' performance on tests. The professor is interested in examining the effect of the test, finding that performing a memory test not only assesses what one knows, but also improves subsequent retention. The professor hypothesizes that students who take the chapter tests will score higher in the middle of the period than students who do not take the chapter tests.

Design and describe an experiment that can test this hypothesis.

Identify the IV and DV.

Provide an operational definition of each variable.