Professor X wants to make sure his study of gifted youngsters will get published, but he's worried that his findings could have been caused by something other than the independent variable, which was a new teaching method he introduced
He is concerned with the ________________ of his experiment.
a. probability level
b. external validity
c. replication
d. internal validity
Answer: D
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You and a friend are visiting a new city and would like to splurge and go out for a fine meal. You look at the restaurant listings in the newspaper and find one that is very expensive. Your friend says: "Let's go for it. With prices like that, we're bound to have a delicious meal!" In making this statement, your friend was most likely guided by the ____
a. vacation effect b. representativeness heuristic c. contrast effect d. primacy effect
One criticism of the medical model of psychological disorders is that:
A) the symptoms change too often for accurate diagnosis. B) psychologists rely too much on the DSM–5 for diagnosis. C) it puts too much emphasis on physical symptoms. D) it uses people's subjective self-reports for diagnosis.
Regarding the predicted future of psychotherapy, which of the following statements is FALSE?
a. The use of lower cost Internet services, telephone counseling, and self-help groups will grow. b. More therapy will be provided by psychiatrists and Ph.D.-level practitioners. c. There will be an increase in the use of short-term therapy and solution-focused, problem-solving approaches. d. The use of psychoanalysis and other long-term insight-oriented therapies will decrease.
Which of the following numbers correctly illustrates approximately how many sperm cells are contained in a single ejaculate?
a. around 1,000 b. 150 to 400 million c. It depends on the size of the ejaculate. d. It depends on the man's progesterone levels.