In their comprehensive study on various ways in which volunteers differ from nonvolunteers, Rosenthal and Rosnow (1975) reported that volunteers tend to be
A. more antisocial.
B. of a lower socioeconomic status.
C. less educated.
D. more in need of approval.
Answer: A
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Leptin is a hormone that __________, and ghrelin is a hormone that is responsible for __________.
A. usually leads to decreased food intake; an increase in hunger B. is not related in any way to obesity; metabolic homeostasis C. helps the body regain its set point; recalibrating the set point D. is an appetite stimulator; appetite suppression
Dr. Swensen says this about treating phobias: "Treatment should involve positive coping statements. It should also involve convincing clients to avoid medication, and to instead, rely on the psychodynamic approach of systematic desensitization. These types of approaches like this have higher success rates than treatments that rely on antidepressants.". What portion of Dr. Swensen's statement is
accurate? a. That treatment should involve systematic desensitization b. That clients should be wary of antidepressants c. That systematic desensitization is a psychodynamic approach d. That medication is largely ineffective as a treatment
The rods contain a light-sensitive visual pigment that is important for night vision and is called
a. rhodopsin. b. iodopsin. c. umami. d. phosphene.
A researcher interested in social anxiety placed an ad in the newspaper seeking people with public speaking anxiety. people who volunteer for this type of study are party of a(n)
a. analogue sample b. proband sample c. aggregate sample d. clinical sample