PARTICIPANTS TAKING PART IN A SLEEP STUDY TO DETERMINE WHETHER THE...

1. Participants taking part in a sleep study to determine whether the number of hours of sleep a person gets determines how well they will do on an exam were randomly assigned to either the group that was woken up at various times throughout the night or the group that was allowed to sleep throughout the night. Independent Variable: hours of sleep Dependent Variable: exam performance Experimental Group: group that was woken up Control Group: group that was allowed to sleep through the night