The phenomenon in which the difference between good and poor readers increases over time is called
a. the cumulative deficit effect. c. the Pygmalion effect.
b. the Flynn effect. d. the Matthew effect.
D
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Dr. Segal is studying the effects of television watching on the language development of children under the age of two. Because of room scheduling issues, the children in the experimental group underwent testing in the morning and the children in the control group underwent testing in the afternoon. This is an example of ____
a. random assignment b. a situational confounding factor c. a confounding factor due to individual differences d. randomization error
What would it take to scientifically demonstrate the existence of ESP?
a. uncritical acceptance by the media and the public b. a double-blind study that would replicate both a run of luck and a decline effect c. a mass media study involving a million ESP trials in which people from the United States and other countries would attempt to identify ESP targets from a distance d. a set of instructions that would allow any competent, unbiased observer to produce a psi event under standardized conditions that rule out any possibility of fraud
Teratogens are most likely to produce major structural abnormalities during the
a. first two weeks after conception. b. second to eighth weeks following conception. c. 12th to 20th weeks following conception. d. last trimester of pregnancy.
Approximately how many hair cells may be found in each human ear?
a. 3,500 b. 8,000 c. 12,500 d. 15,500