Which of the following dates would best represent the year in which the sexual revolution in the United States was at its highest point?
a. 1957
b. 1963
c. 1978
d. 1995
c
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Dr. Brown conducts an experiment to examine the effects of mentorship programs on children's academic achievement. She finds that children who are given mentors receive significantly higher grades than children who are not. The result is statistically significant at the .05 level. What does this mean?
a. The finding probably occurred by chance; mentorship programs probably DO NOT really improve academic achievement. b. The finding probably did NOT occur by chance; mentorship programs probably DO boost academic achievement. c. The finding was larger than expected; mentorship programs appear to be even more effective than Dr. Brown suspected. d. The finding was smaller than expected; mentorship programs appear to be less effective than Dr. Brown suspected.
If the population from which we draw samples is "rectangular," then the sampling distribution of the mean will be
a. rectangular. b. normal. c. bimodal. d. more normal than the population.
Molly, a second year neuroscience graduate student, treats neurons grown in a petri dish with drugs that “block” the function of neuronal receptors. What is a consequence of the drug treatment?
a. The neurons will become depolarized, initiating a refractory period. b. The neurons will become hyperpolarized and less likely to initiate another action potential. c. The synaptic vesicles will be void of neurotransmitters, blocking neuronal communication. d. Action potentials will fire immediately, enhancing neuronal communication.
Marta is lecturing on the first day of her Introduction to Linguistics course. She starts by explaining that if you have words and a set of rules for using those words, you have everything you need for ____
a. ?semantics b. ?syntax c. ?a learning acquisition device d. ?a language