A researcher is interested in whether circadian rhythms influence participants' performance on different kinds of memory tests.The researcher first classifies participants according to whether each is a morning person or evening person.The researcher then randomly assigns participants to receive either an implicit memory test or an explicit memory test.The researcher next tests everyone at 8 a.m.How many cells does this study have?
A) 2
B) 4
C) 6
D) 8

Question

Quizplus · Accepted Answer

This study has four cells because there are two independent variables, circadian rhythm (morning or evening person) and type of memory test (implicit or explicit), each with two levels. The four cells are morning person/implicit memory test, morning person/explicit memory test, evening person/implicit memory test, and evening person/explicit memory test.

A Researcher Is Interested in Whether Circadian Rhythms Influence Participants