One reason that nearly any type of credible treatment may produce strong beneficial effects is that people hope it will and want it to work. This idea is referred to as
A) the placebo effect.
B) regression to the mean.
C) the self-serving bias.
D) spontaneous remission.
Answer: A
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A researcher expects a treatment to increase the scores for individuals in a population. The treatment is evaluated using a one-tailed hypothesis test, and the test produces z = +2.40 . Based on this result, what is the correct statistical decision?
a. The researcher should reject the null hypothesis with ? = .05 but not with ? = .01. b. The researcher should reject the null hypothesis with either ? = .05 or ? = .01. c. The researcher should fail to reject H0 with either ? = .05 or ? = .01. d. Cannot answer without additional information
Baltes and his colleagues have led the way in documenting the evolution of lifespan psychology in general, and the study of adult development and aging in particular
Through their work they have found seven core assumptions consistent with the ____________ view that influences current lifespan developmental theory. a) Mechanistic Metatheory b) Organismic Metatheory c) Contextual Metatheory d) None of the above
What type of hypothesis makes an educated guess about how one variable will influence another variable?
A. Predictive B. Causal C. Untestable D. Research question
Franklin and Adams found that judgements of faces when presented to the right hemisphere correlated with:
a. Their sexual attractiveness b. Their non-sexual attractiveness c. Apparent wealth d. Apparent health