Nature is to nurture as _____ is to _____.

What general principle is demonstrated when solving the Luchins water jug problem?

a) Humor enhances creativity. b) Heuristics generally outperform algorithms. c) Problem solving is related to the effort put forth. d) Successful problem solving can sometimes blind us to easier approaches.

Nearly three-fourths of people with lifetime major depressive disorder are comorbid for

A) at least one additional disorder. B) a disorder of early childhood. C) transient psychotic states. D) at least two additional disorders.