No more than ___% of genetic differences arise from average population, racial, or ethnic group differences

_____ is an irrational fear and avoidance of any social or performance situation in which one might embarrass or humiliate oneself in front of others by appearing clumsy, foolish, or incompetent

a) Obsessive-compulsive disorder b) Social anxiety disorder c) Generalized anxiety disorder d) Major depressive disorder

Which of the following is NOT one of the major reasons that people look at sexually explicit material?

a. to satisfy voyeuristic desires b. to learn about sex c. to rehearse sexual behaviors d. to enjoy the sexual arousal it produces