The best description of oxytocin may be that it ____
a. stimulates the brain's reward centers
b. increases attention to important social cues
c. acts much like endogenous opiates
d. really is the "love hormone"
b
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A distribution of possible sample means is also referred to as the ______.
A. distribution of sample means B. confidence interval C. normal distribution D. significance level
A measure of how tightly clustered a group of scores is around their mean is called the ____
a. variability b. mode c. standard deviation d. frequency
An older couple decides that they are less able to drive their car during rush hour. This couple is noticing a change in
a. reaction time. c. calcium metabolism. b. social interest. d. the quality of modern life.
Greg's parents are recently divorced. Greg has always been a "B" student. After the divorce, what is likely to happen to Greg's grades?
a. They are likely to rise. b. They are likely to fall. c. They will stay the same. d. We are unable to predict.