Who claimed that behavior is affected by positive reinforcement?

Twin and adoption studies are helpful for assessing the ________ of intelligence.

a. predictive validity b. reliability c. heritability d. standardization e. content validity

According to research, women are more likely than men to be upset when:

a. their partner has sexual intercourse with someone else. b. their partner forms an emotional attachment to someone else. c. their partner flirts with someone powerful and successful. d. either when their partner has sexual intercourse with someone else or when their partner forms an emotional attachment to someone else.