According to the text, a two-tailed test should be used:
A. if you are sure that the difference between your means is sufficiently large to ensure statistical significance.
B. unless there is a compelling a priori reason not to.
C. when you are interested in controlling Type II errors but less interested in controlling Type I errors.
D. None of the answers is correct.
Answer: B
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a. oral c. anal-retentive b. phallic d. anal-expulsive
Which of the following statements is FALSE?
a. Our understanding of syntax is automatic. b. Syntactical rules are learned implicitly. c. Learning syntax and learning word meaning involve different brain mechanisms. d. Syntax is a synonym for semantics. e. Syntax is a synonym for grammar.
If H0 is in reality false and it is legitimate to use a directional H1, which of the following will yield a more powerful test?
a. one-tailed alternative hypothesis b. two-tailed alternative hypothesis c. one-tailed or two-tailed alternative hypothesis will yield the same power d. type of alternative hypothesis has no effect on power
Carmen is more likely to experience powerful and uncomfortable stress reactions if she views a stressor as a
a. challenge during primary appraisal. b. challenge during secondary appraisal. c. threat during primary appraisal. d. threat during secondary appraisal.