DrMorris Is Studying How Sleep Deprivation Affects Semantic Memory

question 285

Multiple Choice

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