An accurate psychometric testing instrument
A) ?must be both valid and reliable.
B) ?may be valid but not reliable.
C) ?may be reliable but not valid.
D) ?must be given with time limits.
A
Psychology
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Why are t statistics more variable than z-scores?
a. The extra variability is caused by variations in the sample mean. b. The extra variability is caused by variations in the sample variance. c. The extra variability is caused by variations in the df value. d. None of the other options explains the extra variability for t statistics.
Psychology
When Congress passed the Insanity Defense Reform Act of 1984, it made successful use of the insanity defense
A. more difficult for all individuals. B. easier for any individual. C. more difficult for the mentally ill only. D. easier for the nonmentally ill.
Psychology