While biology may play some role in sex differences in aggression, cultural factors are also important

The branch of psychology concerned with the diagnosis and treatment of psychological disorders is called

a. industrial psychology. b. social psychology. c. developmental psychology. d. clinical psychology.

A researcher is interested in whether students who are musicians have higher intelligence test scores than students in the general population. The researcher predicts that playing a musical instrument is associated with higher intelligence test scores. The researcher selects a sample of 75 musicians from local high schools and gives them an intelligence test. The mean for the sample is 105 . The

mean for the general population (µ) is 100 with a standard deviation (s) of 15 . What is zobt for this sample? a. 0.33 b. 1.89 c. 2.89 d. 3.25