Most studies and personal experiences of sleep deprivation are confounded by
A) stress.
B) dreaming.
C) energy deficits.
D) circadian rhythms.
E) sleep walking.
Answer: A
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The population variance is
a. an estimate of the sample variance. b. calculated exactly like the sample variance. c. a biased estimate. d. usually an unknown that we try to estimate.
The fatality rate for ECT is ________ the fatality rate for people taking antidepressant drugs
a. slightly higher than b. markedly higher than c. about the same as d. markedly lower than
Social psychologists use common sense to determine answers to their research questions
Indicate whether this statement is true or false.
If scores are normally distributed in the populations sampled, then _____
a. parametric tests are less likely to detect the effect of the independent variable b. nonparametric tests are more likely to result in Type I errors c. parametric and nonparametric tests are equally likely to detect the effect of an independent variable d. nonparametric tests are more likely to result in Type II errors