The preference for playing with same-sex peers peaks

Suppose that you hear about a friend who graduated from your college in performing arts. In addition, suppose that you judge that she is more likely to be selling insurance and active in community theater than she is to be selling insurance

You have committed a. the anchoring and adjustment heuristic. b. the crystal-ball technique. c. the belief-bias effect. d. the conjunction fallacy.

This Viennese physician, using ideas originating in his work with mentally disturbed patients, developed the psychodynamic principles of motivation. Who is he?

a. John Dewey b. William James c. Sigmund Freud d. Wilhelm Wundt