Research has demonstrated that loneliness ____
a. has no effect on the immune system
b. strengthens the immune system (in preparation for battling disease)
c. has the negative effect of weakening the immune system
d. strengthens men's immune systems but weaken women's immune systems
C
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Darcy is sitting at her desk at work one day when, without warning, her heart begins racing, she feels dizzy, begins trembling, and has heart palpitations. She is utterly convinced that she is about to die. Nothing she was doing seems to have caused such an episode. Her symptoms most resemble those of a(n) __________.
A. phobic disorder B. panic attack C. posttraumatic stress reaction D. affective disorder
Researchers studying the effects of sleep deprivation tested the physical coordination skills of 25-year-old males who had been sleep deprived for 24, 36, or 48 hours. In this study, the dependent variable would be
a. the age of the research participants. b. the physical coordination skills of the men in the study. c. the length of time the participants had been sleep deprived. d. the type of physical coordination task the researchers use.
Shelly says, "I think that everyone has an inherent tendency to strive toward their full potential. It shows in our creativity and delight in discovering new things." Shelly's thoughts illustrate ____
a. Maslow's term "self-actualization" b. Thorndike's principle "the law of effect" c. Freud's view of unconscious influences on our development d. Ellis's concept of rational beliefs
Dr. Rhoden conducts animal experiments on visual perception. Rhoden wants to stop the animal's pupil from changing size, so he paralyzes the
a. cornea. b. iris. c. lens. d. retina. e. pupil.