Suppose that in the previous question another subject had a predicted score of 10.3, and actually obtained a score of 12.4. For this subject the residual score would be

One personality variable that has been consistently associated with higher rates of substance dependence is

A. low self-esteem. B. extraversion. C. high impulsivity. D. passivity.

Which of the following is an effect of marijuana at stronger levels of intoxication?

a. It may produce feelings of heightened sexual sensations. b. It can cause smokers to become agitated. c. It can make time seem to pass more quickly. d. It appears to produce more physiological than psychological dependence.