__________ demonstrated that messages traveling along neurons are electrochemical
a. James c. Wundt
b. Galvani d. Edison
B
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Mental health professionals use perspectives, called models, to
a. discredit other professional's ideas. b. understand why someone has problems. c. separate symptoms from syndromes. d. apply their own feelings to a diagnosis.
A regular heroin user, Johnny will become very sick if he goes a half day without using. This BEST illustrates:
A) drug tolerance. B) physical dependence. C) psychological dependence. D) the role of expectancy effects.
Sociobiologists predict that, compared to males, females should be more likely to ________
a. be polygamous. b. be monogamous. c. choose a young, attractive mate. d. be promiscuous.
A researcher wants to know whether writing an essay on a controversial topic will have an effect on the attitudes held by people. First, she administers an attitude survey that covers a number of topics, including electronic voting machines. She then randomly assigns subjects to write an essay either supporting or opposing electronic voting machines. One week later, she administers the same attitude survey and compares those responses to the responses from the first time the survey was administered. In this experiment, the independent variable (IV) is the ________.
a) attitude survey b) essay c) controversial topic d) students' attitudes