Which of the following is a benefit of regular exercise?
a. exercise increases muscle tone and reduces fat
b. stress reduction
c. exercise reduces mortality rates
d. reduced risk of heart disease
e. All of the above are correct.
e. All of the above are correct.
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Nancy has a headache; she takes some aspirin, and the headache goes away. Nancy is more likely to take aspirin again. This is an example of
a. negative reinforcement. b. classical conditioning. c. positive reinforcement. d. punishers.
To compare the means of two randomly assigned groups of individuals, the appropriate test is:
a. a t-test for dependent groups. b. a t-test for matched scores. c. a t-test for independent groups. d. any one of these
"Fixing" tissue to be viewed refers to a. slicing tissue into thin slices
b. preserving the tissue by freezing or by the use of formalin. c. mounting tissue on slides. d. deciding which tissue to observe.
Participants in a classic experiment conducted by Stanley Milgram (1963) found themselves in the uncomfortable position of being asked to administer increasingly strong shocks to a learner every time he made a mistake
Videotapes of the participants showed them laughing hysterically, chain-smoking, sweating, and fidgeting nervously. Based on these videotapes, it could be inferred that Milgram's experiment was high on a. internal validity. b. reliability. c. experimental control. d. psychological realism.