Conditioned reinforcers are stimuli that can act like reinforcers even though they may appear to have little or no direct value
Indicate whether the statement is true or false
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Blockage of the coronary arteries that drops blood flow below the level needed to sustain the heart muscle is termed
a. myocardial infarction. b. cerebrovascular accident. c. atherosclerosis. d. angina pectoris.
Jamar has been concerned that some of his lapses in memory might signal oncoming dementia. To determine if these changes are normal or an early form of dementia, a clinician may administer the
a. Wechsler Adult Intelligence Scale and the Halstead-Reitan test. b. Wechsler Child Intelligence Scale and the Piaget test. c. Chomsky Intelligence Analysis test and the Halstead-Reitan test. d. Wechsler Intelligence Scale for Elders and the Stroop test.
Rates of mental disorders are a. higher in the United States than in most other countries, due to superior diagnostic methods
b. higher in the United States than in most other countries, due to higher levels of stress. c. lower in the United States than in most other countries, due to the stigma attached to mental disorders within the public and medical communities. d. lower in the United States than in most other countries, due to the higher levels of poverty, war, and stress outside the U.S.
In an experiment, how might a researcher rule out preexisting differences between
the experimental and control groups? (a) random assignment of subjects to groups (b) random sampling of subjects (c) assigning subjects to groups in turn, so that the first subject who shows up is put in one group, the second into the other, etc. (d) sampling of situations