Activation of which type of receptors appears most important for the reinforcing effects of psychostimulants?
a. Cholinergic receptors
b. Serotonin receptors
c. Dopamine receptors
d. Noradrenergic receptors
Ans: C
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Your friend took an intelligence test. Knowing something about intelligence, you ask her to describe the experience. She says, "There were about 15 other people taking the test at the same time. I think it was called the Wechsler Test." Was she correct?
A. Yes B. No-the Wechsler tests are only given in small groups of less than five people. C. No-the Wechsler tests are no longer given and have been replaced by the Binet-Simon test. D. No-the Wechsler tests are given on a one-to-one basis, not in a group.
An advertisement states that job applicants must have an A.A. degree or two years of experience. This illustrates a __________ concept
a. prototypical b. relational c. conjunctive d. disjunctive
People living under stressful conditions tend to get sick more often than they would otherwise. How do researchers in psychoneuroimmunology explain this phenomenon?
a) The stress response reduces immune system functioning, thus making us more vulnerable to diseases. b) The stress response in the long run leads to a lowering of the heart rate, which makes the heart inefficient. c) The stress response makes muscles stronger, which places a greater burden on the heart and respiratory systems. d) The body tends to adapt to the constant call for the stress response and, thus, future responses are not as strong as before.
According to the text, a drawback of using Pearson's product-moment correlation coefficient as an index of interrater reliability is that:
A. two sets of numbers from two observers can be highly correlated even when they disagree markedly. B. it tends to overstate the degree of correlation between observers' data. C. it cannot be computed for more than two observers. D. All of the answers are correct.