Both depression and coronary heart disease (CHD) are linked to genes that alter the functioning of the:

In research studies, the term "effect size" refers to

A. how much each treated and untreated person in the study changes. B. the power of the statistical tests that are used to detect the impact of the independent variable. C. how many subjects are included in a particular study. D. the degree of external validity that the study has.

You are having dinner with a close female friend, and you know that her boyfriend is going to propose to her later that evening. You barely manage to keep yourself from telling her the secret

As you say goodbye and begin walking home, you pass your favorite ice cream shop. According to the research on willpower, how likely are you to keep to your diet and resist buying a cone? A) You will be less likely to resist than normal. B) You will be more likely to resist than normal. C) You will be neither more nor less likely to resist. D) There is no way to determine how likely you are to resist.

Which of the following would be considered the most highly canalized trait at birth?

A. Sequence of motor development B. Language development C. Antisocial behavior D. Tendency toward early sexual activity

Research has ________ the belief that Mexican American marriages are male-dominated

a. validated b. not supported c. not tested d. provided mixed support for