The probability of NOT rejecting a null hypothesis when it is false is called?
a. a Type I error
b. a Type II error
c. experimenter error
d. method error
B
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According to the introduction of the chapter on women and physical health,
a. most of women's physical health problems can be traced to psychological difficulties. b. health psychology is an important topic in the medical professions, but—surprisingly—not within psychology. c. health psychology examines the causes of illness, as well as illness prevention and health improvement. d. research has found only small gender differences in physical health.
If a researcher reported for a single-sample t test that t(17) = 2.90, p< 0.02, how many participants were there in the study?
a. 18 b. 20 c. 10 d. 9
How can the response rate of mail questionnaires be improved?
a. Enclose another copy of the questionnaire in follow-up letters. b. Include a small payment with the questionnaire. c. Include an abridged version of the original questionnaire in follow-up letters. d. All of the above.
Taking a Sunday stroll around a city park while playing with a set of keys in your hand could satisfy each of the following except the ________ motive
a. exploration b. manipulation c. contact d. curiosity