If a placebo is used, researchers assume that differences in group performance are not due to:
a. experimenter expectancies about the experiment
b. differences in the personal characteristics of subjects in each group
c. subject expectancies about the experiment
d. the environmental conditions that are intentionally manipulated in the experiment
C
Psychology
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The person most closely associated with desensitization is ______
a. Ellis c. Adler b. Wolpe d. Skinner
Psychology
While they are in elementary school, children in the United States grow, on average, 2 to 3 inches per year. By the age of 11, the average height for girls is ____________, and the average height for boys is slightly shorter at ____________
a. 3'5"; 4'5" c. 4'9"; 4'10" b. 3'10"; 4'10" d. 4'10"; 4'91/2"
Psychology