The statement that delivering a small pulse of electricity to a specific area of the brain increases bar pressing is a _____ hypothesis
a. directional alternative c. null
b. nondirectional alternative d. post hoc
A
Directional alternative hypotheses specify the direction of change in the dependent measure from pretest to posttest that is caused by the treatment.
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How has research on comorbidity changed the focus of epidemiological research?
a. shifted the focus from the psychotic disorders to milder disorders that affect more people b. higher than expected prevalence of mental retardation led to more emphasis on intellectual ability c. shifted the focus from counting the number of people with a disorder to measuring the functional impairment associated with the problems d. evidence for the biological etiology of more mental disorders has switched the focus to identifying the genes responsible for particular disorders
Single-gene discoveries have found genetic influences for
a. novelty-seeking. b. neuroticism. c. agreeableness. d. all of these answers are correct
The statement "men can't be faithful to just one woman; it's not in their nature" implies a(n)
A) cognitive approach. B) behaviorist approach. C) evolutionary approach. D) psychoanalytic approach. E) neo-analytic approach.
Systems theories of development are popular with contemporary scientists because they reflect the ________nature of human life.
A. transactional B. universal C. biological D. complex