Why are there more than two treatment levels in a one factor repeated measures design?
a. Two levels don't allow enough time for some treatments to take effect.
b. Having more than two treatment levels prevents the effects of maturation, testing, and history from occurring.
c. To prevent the participants from having to perform the experimental task too many times.
d. Certain relationships between variables cannot be accurately demonstrated with only two treatment levels.
D
Certain complex relationships between variables cannot be discovered if there are only two levels of the independent variable; for example if responding increases at first and later declines with increasing levels of the independent variable, at leas three levels would be needed to demonstrate the relationship.
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What aspect of the symptoms of schizophrenia is described by the term "loose associations"?
a. social withdrawal b. shifting topics too abruptly c. disruptions in neurotransmitter functioning d. lack of relation between cognitive and emotional symptoms
Kellie is fearful in situations where she must eat in public or write in the presence of others. She is worried that she might say or do something embarrassing. Kellie is exhibiting the symptoms of a(n) ________
a. generalized anxiety disorder. b. idiosyncratic phobia. c. obsessive-compulsive disorder. d. social phobia.