The standard deviation of the sampling distribution of the means is called the:

Given an equal dose of a drug, women generally have higher levels in their bloodstreams. Although this is a common finding, what factor complicates the picture and makes research on sex differences in drug response complicated?

a) Estrogen and progesterone slow the emptying of the stomach. b) Differing diets actually account for the large differences in blood levels of drugs. c) Higher rates of alcohol use by men are responsible for differing blood levels of drugs. d) The difference in bloodstream levels of drugs between men and women results from differences in adherence to specified treatments.

Qui Yung received a poor grade on a math exam. She then compared her score with classmates and observed she had a higher grade than most. Qui Yung will probably

a. feel better about her grade in comparison to her classmates. b. feel that the teacher was unfair in giving such a hard exam. c. give up since she does not have the ability to do well in math. d. believe that girls aren't good at math.