To meet the DSM criteria for a diagnosis of cyclothymic disorder, disturbances of mood in
adults must persist for at least ______.
a. 1 year c. 3 years
b. 2 years d. 4 years
B
Psychology
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Mellie wants to find out if doing laughter therapy decreases stress hormone levels. She has half of her sample participate in a laughter therapy group session and the other half participate in a talk therapy group session. After the sessions, she takes blood samples from all of the participants and analyzes them for stress hormones. Mellie's study used the _____ method.
a. observational b. survey c. experimental d. quasi-experimental
Psychology
A "bright" 8-year-old might have a mental age of
a. 4. c. 8. b. 6. d. 10.
Psychology