A research procedure in which a variable is manipulated and the manipulation's effect on another variable is observed is known as a( n ):
A)experiment.
B)epidemiological study.
C)factorial study.
D)incidence study.
A)experiment.
Psychology
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John Watson's view was that psychologists should study
a. observable behavior. b. participants' verbal reports of sensations, images, and feelings. c. learning rather than performance. d. states of consciousness.
Psychology
A general criticism of selectionism is that it
a. deals only with simple phenomena. b. does not consider different levels of selection. c. is not consistent with Darwin's view. d. is too historical. e. cannot account for all of the steps of the evolutionary process.
Psychology