A researcher investigates whether there is a relationship between hours of sleep and memory for photographs by having 40 people sleep in the laboratory and waking 20 of the participants after 4 hours of sleep and the others after 8 hours of sleep.After they are awakened, each participant is asked to study 21 photographs and then recall as many details from the photographs as possible.In this study, what is 8 hours of sleep?
A)The independent variable
B)The dependent variable
C)The sample
D)A condition of the independent variable

Question

Quizplus · Accepted Answer

8 hours of sleep is a condition of the independent variable, which is the amount of sleep.

A Researcher Investigates Whether There Is a Relationship Between Hours