The standard deviation of a distribution is found by
a) taking the square root of the variance.
b) squaring the variance.
c) taking the average of all the values.
d) ranking the values in order and selecting the middle value.
a
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When examining gender differences, the author points out that it is important to not only consider averages, but also to consider ________
a. who is highest b. who is lowest c. how the two groups overlap d. how they diverge
What is a documented difference between men and women?
a. Low dose aspirin reduces the risk of heart attacks in females but not in males. b. Low dose aspirin reduces the incidence of stroke in males but not in females. c. Females have a lower threshold for pain than males. d. Females have a higher threshold for pain than males.
A review of all types of treatment programs concludes that
A. the rate of reoffending after 20 years is about 80 percent for all types of treatment. B. cognitive-behavioral therapies (CBT) based programs are consistently shown to be effective. C. such programs did not lead to sexual recidivism at all. D. classical behavioral programs have the greatest significant effect.
Samantha has fallen deeply and passionately in love for the first time in her life. If a researcher were to examine her brain, what would he or she most likely observe?
a) High levels of serotonin b) High levels of dopamine c) Low levels of norepinephrine d) High levels of pheromones