Dr.Morris is studying how sleep deprivation affects semantic memory.He has each participant study a list of random facts and then undergo sleep deprivation for either 24 hours,30 hours,or 36 hours.Then,following an additional 48-hour delay period,each participant's memory for the random facts is tested.In this study,what is the independent variable?
A) number of random facts remembered
B) number of hours of sleep deprivation
C) 48-hour delay
D) the amount of time spent trying to remember the random facts

Question

Quizplus · Accepted Answer

The independent variable in this study is the number of hours of sleep deprivation, as this is the factor that is being manipulated by the researcher to observe its effect on semantic memory. The other variables listed (number of random facts remembered, 48-hour delay, and amount of time spent trying to remember random facts) are either dependent variables or extraneous variables that may affect the results, but are not being directly manipulated by the researcher.

DrMorris Is Studying How Sleep Deprivation Affects Semantic Memory