In the context of a research design, which of the following is a factor affecting external validity?
A. History
B. Reactive testing
C. Instrumentation
D. Experimental mortality
Answer: B
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The control group in an experiment is the group that:
a. is not exposed to the dependent variable in the study b. receives the lowest score on the dependent variable c. receives some special treatment in regard to the independent variable d. does not receive any special treatment in regard to the independent variable
Caution should be exercised when discussing scientific observations of behavior because
a. These results can be misinterpreted as the way that people should behave b. These results can bias people for future experimental participation c. These results are seldom accurate d. These results generally lack external validity
A client tells his behavioral therapist that he has a goal of jogging for 30 minutes every other day. The therapist helps the client create a system by which he rewards himself first for putting on jogging clothes and doing any kind of exercise for any length of time, then for jogging for 5 minutes, then for jogging for 15 minutes, and ultimately for jogging for 30 minutes. This technique is best
described as a. shaping. b. behavioral instruction. c. time-out. d. a token economy.
Zajonc contends that a physiological explanation of the finding that emotion can occur quickly and without cognition is the direct ling between the thalamus and the:
a. hypothalamus b. amygdala c. hippocampus d. cerebellum