In some experiments, participants receive a(n) ____________________, which is an inactive "sugar" pill that looks just like the drug used in the experimental condition
Fill in the blank(s) with correct word
placebo
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College health clinics are probably MOST likely to experience an increase in students seeking treatment for colds and other minor illnesses
a. during the weekend. b. during the middle of the week. c. during finals week. d. during the middle week of the semester.
A sample has a mean of M = 39.5 and a standard deviation of s = 4.3, and produces a t statistic of t = 2.14 . For a two-tailed hypothesis test with ? = .05, what is the correct statistical decision for this sample?
a. The researcher can reject the null hypothesis with ? = .05 but not with ? = .01. b. The researcher can reject the null hypothesis with either ? = .05 or ? = .01. c. The researcher must fail to reject the null hypothesis with either ? = .05 or ? = .01. d. It is impossible to make a decision about H0 without more information.
By what age do children begin to use telegraphic speech and have a vocabulary of 100-200
words? a. 36 months b. 12-18 months c. 18-24 months d. 9-10 months
Which of the following statements is true about organized youth sports?
A) Partly because of parents' concern about safety, today's children devote far less time to organized sports than children in previous generations. B) About half of U.S. children participate in organized sports outside of school hours at some time between ages 5 and 18. C) In most organized sports, the rate of serious injury is high throughout childhood and adolescence. D) High parental pressure to excel at sports and frequent, intense practices are linked to promoting elite performance.