Bertha becomes conditioned to cry every time she sees an onion chopper because she associates it with cutting onions, which always make her eyes water. For weeks, the onion cutter sits on the counter with no onions. Eventually, she never cries when she sees the cutter. Then the onion cutter disappears for two months, and when Bertha sees it again for the first time, she begins to cry. This

According to the article Zipping Up the Genes about twins reared apart, variance in scientific studies is

likely to be the result of differences between individuals studied and (a) error in measurement (b) careful control of studies (c) statistical analysis (d) all of these--a, b, and c--are correct

Which of the following statements most reflects a social psychological point of view?

a. I'll hire Justin to house-sit because he seems like a trustworthy type. b. Sara won the competition because she is a hard-working person. c. Fred offered to help because there was a certain someone watching whom he wanted to impress. d. Janet's love for Jessica is an unconscious reflection of her childhood idealization of her mother.