Surveys show that many Americans do not regard __________ as "sex."
a. anal intercourse
b. oral-genital contact
c. vaginal intercourse
d. both a and b
d
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Who is most likely to be negatively affected by losing his job?
a. Nate, who is 23 years old b. Bill, who is 28 years old c. Marty, who is 46 years old d. Bruce, who is 68 years old
Which manipulation of the time period between treatment conditions reduces the chances of history influencing the results of a within-subjects experiment?
a. shortening b. lengthening c. shortening and then lengthening d. randomly varying the period
The development of the computer was a key factor in the beginning of:
a. evolutionary psychology b. cognitive psychology c. genetic mapping d. cultural psychology
Which of the following statements is supported by research on colic?
A) Colic is usually a sign of central nervous system damage. B) Infants with colic tend to have persistent low-pitched cries. C) Colic usually subsides between 3 and 6 weeks. D) Newborns who react especially strongly to unpleasant stimuli are at risk for colic.