Many studies show that different forms of treatment often appear to work equally well; this point can be attributed to the fact that
a. most people want to get better.
b. most people get better with or without treatment.
c. different treatments still share many common factors.
d. the research studies are very poorly done.
Answer: c.
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Gilbert thought he could detect the faint odor of smoke coming from the room next door. However, he wasn't really sure because the odor was very faint and when he tried to smell it again it seemed to have disappeared. Based on research conducted by psychophysicists, you should conclude that the odor from the smoke was:
a. below Gilbert's difference threshold for smell b. above Gilbert's adaptation threshold for smell c. below Gilbert's level for perceptual invariance d. just at Gilbert's absolute threshold for smell
A researcher reports an F-ratio with df = 2, 40 from a repeated-measures ANOVA. How many subjects participated in this experiment?
A) 44? B) ?41 C) ?63 D) ?21