The factor most closely linked to infant mortality is
a. low-birthweight. c. race.
b. socioeconomic status. d. maternal age.
a
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Rats receive a shock when they drink saccharin-flavored water from a tube that produces loud noises and bright lights. Later, what do they avoid, if anything?
a. The loud noises and bright lights b. Saccharin-flavored water c. The tube d. Nothing
According to Erik Erikson, most 3-year-olds have developed a sense of autonomy and then can begin to focus on the conflict between:
a. initiative versus guilt b. love and empathy c. trust and mistrust d. ego integrity and despair
Effective sex education programs
A) teach techniques for handling sexual situations. B) focus on promoting the value of abstinence. C) do not encourage the use of contraceptives. D) last only a few sessions.
All of the following are subcategories of external validity EXCEPT ______.
A. population validity B. temporal validity C. outcome validity D. maturation validity