Which of the following recruitment strategy is an example of convenience sampling to collect family income in San Francisco?

A. randomly selecting people from a phone book in San Francisco and calling them
B. mailing out a questionnaire to everyone in a San Francisco
C. randomly asking people waiting at the bus stop
D. It is not possible to use convenient sampling from a population in San Francisco.


Answer: C

Psychology

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Starting in the 1940s, why did pediatricians recommend bottle-feeding over breastfeeding?

A. Bottle-feeding formula contained more nutrients. B. Parents could keep track of the amount of milk the baby was receiving. C. Bottle-feeding offered significant emotional advantages to the mother. D. Bottle-fed babies were more responsive to their mothers.

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Which biological event directly results in the growth of a penis in a male fetus?

a. Receiving a Y chromosome at conception b. Secretion of testosterone by the testes c. Absence of the release of female hormones d. The presence of a gene on the X chromosome

Psychology

The diathesis-stress theory of schizophrenia says that some people have a(n):

a. overactive dopamine neurotransmitter system b. genetic predisposition that interacts with life stressors to cause the disease c. atypical neuroleptic tendency in their brains d. overactive diathesis in the prefrontal cortex

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The "lock and key" analogy relates to the a. degradation of neurotransmitters by enzymes. b. activation of the nerve impulse

c. reuptake of neurotransmitters. d. action of neurotransmitters on receptor sites.

Psychology