For the past 200,000 years, Homo sapiens have changed very little biologically. What accounts for the major differences that can be seen in other aspects of human life?

If a researcher were to observe women exercising and then men exercising and compare these groups, why would this not be considered an experiment?

a. The experimenter is not manipulating anything. b. The study is biased. c. There is no prior evidence that gender is related to one's preferred type of exercise. d. An experiment must involve at least three different conditions.

Amber says to her friend, "I don't know why you expect Simeon to change. The fact is people behave in stable ways." Amber most likely subscribes to the ____ approach to personality

a. ?humanistic psychology b. ?trait c. ?psychodynamic d. ?behavioral