With regard to the prevalence of mood disorders, which of the following has been found consistently?
A) Females experience major depressive disorders less frequently than males.
B) Men have twice as many mood disorders as women.
C) Bipolar disorders occur equally across the sexes.
D) Dysthymia occurs equally across the sexes.
Answer: C) Bipolar disorders occur equally across the sexes.
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Dr. Carlson is studying the effect of temperature on memory. One week he has 20 participants test in a cold room. The next week he has the same 20 participants test in a hot room. This is what type of research design?
A. pretest-posttest control group design B. within-participants design C. one-group pretest-posttest design D. between-participants design
Reaching conclusions in psychological science requires:
A) introspection. B) the ability to test a theory. C) insights based on personal observations. D) philosophical empiricism.
After a single presentation, Megan can recall her friend's long-distance telephone number and five-digit extension even though the sequence contains 15 digits. One reason for her ease of recall is that she combined the digits into smaller groups. This process is called
a. primacy effect. c. seven plus or minus two. b. recency effect. d. chunking.
Which infant is using mental symbols?
a. Eric, who is kicking his leg over and over b. Dan, who is squeezing different toys to see if they squeak c. Roger, who is climbing up on a chair to reach a toy on a shelf d. Peter, who is saying "Vrrrrroooommm!" and moving his hand like a car