According to a study by Barr (1990), the peak period of crying is reached at about

a. 2 weeks of age.
b. 6 weeks of age.
c. 12 weeks of age.
d. 24 weeks of age.

Answer: b. 6 weeks of age.

Psychology

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Which of the following are examples of the benzodiazepine class of drugs?

a. Zoloft and Paxil b. Valium and Xanax c. Haldol and Thorazine d. Elavil and Stelazine

Psychology

When Jewish subjects tried to remember briefly flashed groups of stimuli, they recognized fewer items when one was a swastika. This was because

a. they were concentrating harder on the other stimuli. b. the stimuli were figures which had no meaning. c. their attention was shifted away from other information. d. their attention span decreased with constant repetition of the stimuli.

Psychology