Answer to Question #298229 in Psychology for evie

Question

On the basis of her experience with clients, a clinical psychologist thinks that depression may

affect sleep. She decides to test this idea. The sleep of nine depressed patients and eight

normal controls are monitored for three successive nights. The average number of hours slept

by each subject during the last two nights is shown in the following table:

Hours of Sleep

Depressed Patients Normal Controls

7.1 8.2

6.8 7.5

6.7 7.7

7.3 7.8

7.5 8.0

6.2 7.4

6.9 7.3

6.5 6.5

7.2

Answer 1

This sample number is large and therefore the clinician will be very accurate while calculating number of patients who are depressed. Depression causes lack of sleep and the result that the clinician is expected to get, will show that the depressed patients have had poor sleeps or no sleep at all.