Which of the following statements regarding correlational research is NOT true?
A. The goal of correlational research is to describe the strength of the relationship between two or more events or characteristics.
B. A negative correlation coefficient means an inverse relationship.
C. The goal of correlational research is to demonstrate cause-and-effect relationships.
D. The results of correlational research are reported in a numerical measure called a correlation coefficient.
Answer: C
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In decision analysis, the detection rate is the same thing as
a. the sensitivity. b. the specificity. c. the accuracy rate. d. the false positive rate.
Nora is an author who has spent the last six months writing a novel. Now that she has finished the novel, she is spending time catching up with family and friends. Nora's behavior is best explained by ____ theory.?
a. ?existence, relatedness, growth b. ?goal-setting c. ?leader-member exchange d. ?expectancy
Robb carefully designed a study to test a method for reducing test anxiety among students. On the day he conducts his post-test, a broken water main nearby results in jack hammering and other construction sounds that are seem to be distracting research participants. Robb's ability to detect differences among his groups may have been compromised by ____
a. low reliability of the measure b. random heterogeneity of participants c. poor reliability of treatment implementation d. random irrelevancies in the setting
An experimental study is conducted examining the relationship between drinking caffeine and reaction time. Participants given caffeine by the experimenters in different amounts, and then are assessed on various tests of reaction time. In this study, the amount of caffeine that a participant drinks is the ____.
a. control variable b. dependent variable c. random variable d. independent variable