In an experiment on the effects of level of motivation on the performance of typists, the researcher randomly assigned one-third of her subjects to each of three levels of motivation (and then induced different levels of motivation in the three groups). She measured the average words typed per minute by each group, and found that performance was highest under medium motivation, average under low motivation, and worst under high motivation. What was the independent variable in this experiment?

A. motivation
B. typing speed
C. variation in typing speed
D. manipulation of typing speed

Answer: A

Psychology

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Alec's sympathetic nervous system is highly aroused. Because he interprets his situation as a thrilling but ultimately safe roller coaster ride, Alec experiences excitement, rather than, say, terror. Alec's interpretation is called a(n):

a) attitude. b) attribution. c) appraisal. d) schema.

Psychology

Saffran and Griepentrog (2001) showed that infants tend to encode pitch in ___ terms, and adults tend to encode pitch in ___ terms

a. relative, absolute b. continuous, categorical c. absolute, relative d. categorical, continuous

Psychology