What is the risk of examining all possible mean differences in a one-way ANOVA?
a. It increases the likelihood of a Type I Error
b. It increases the likelihood of a Type II Error
c. It makes it harder to find an effect
d. It is based on a theoretical reason
Ans: a. It increases the likelihood of a Type I Error
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Why does the text say that it is better for kids to watch PBS than network TV?
(a) they do not get commercials on PBS (b) television has substantial effects on beliefs and behavior (c) behavior affects beliefs (d) TV helps children learn to distinguish between fantasy and reality (e) they will adapt to what they see on TV
To make lineups more accurate, why should police officers tell witnesses that the lineup may not include the suspect?
a. because it is difficult for witnesses to admit that the culprit is not present b. because the witnesses may be afraid c. to increase their feeling of confidence in their decision d. to get them to pay attention to the instructions they are given