A correlation coefficient can ______ demonstrate cause.
A. always
B. never
C. mostly
D. intermittently
Ans: B
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Low reliability of variables
a. does not effect interrelatedness of variables. b. decreases the chance of finding significant relationships. c. increases the chance of finding number of significant relationships. d. may either increase of decrease the chance of finding significant relationship.
A frequently used test accommodation in mathematics assessment is
A. to exempt the student from taking the test. B. to change of physical setting. C. to provide extended time for the test. D. to permit the student to work in a quieter environment.
In the federal work-study program, all of these rules apply except
a. Getting paid hourly b. Being paid commission or fees c. Wages must meet current federal minimum wage d. Getting paid at least monthly
Which of the following symbols is associated with the slope in the regression equation?
a. X b. Y^' c. a d. b