Which word reflects the relationship between the heart and the chest cavity?

In principle, the purpose of random sampling is to make sure that research participants

a. have the right to withdraw from a study without incurring any penalty. b. are fully informed as to the procedures and hypotheses of the study. c. do not differ from one another in systematic ways. d. constitute a representative sample from the population of interest.

For the past several weeks, Ian's thinking races from one idea to the next, and he cannot stay focused on any one idea. He feels pressure to keep on talking, feels a decreased need for sleep, and has been arrested for harassing pedestrians on the street. Of the following, what diagnosis would Ian most likely be given?

a. bipolar disorder c. cyclothymic disorder b. unipolar depression d. dysthymic disorder

Frontal lobe damage is correlated with a. increases in feelings of fear and anxiety

b. decreases in feelings of fear and anxiety. c. increases in feelings of reward. d. decreases in feelings of reward.

As people age, they may rely less on __________ comparisons in judging their self-worth and more on __________ comparisons

A) social; temporal B) temporal; social C) emotional; physical D) physical; metacognitive