To look at variability in a group, a researcher with interval level data would use
a. quartile deviation .
b. range.
c. standard deviation.
d. standard score.
ANS: C
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Split-half, KR21, and the alpha coefficient are all measures of:
A) test-retest reliability B) construct validity C) rater reliability D) internal consistency reliability
When students learn in physics that work means the amount of force used to move an object a certain distance, they are
a. using a known word for a known concept. b. applying a new word to a known concept. c. learning a new concept associated with a known word. d. learning a new word for a new concept.
A procedure that gradually reduces the frequency of a target behavior by withholding reinforcement for a previously reinforced behavior is referred to as?
a. Extinction b. Timeout c. Response cost d. Overcorrection
Test anxiety is a
A. temporary condition characterized by a sense of calmness when taking a test. B. permanent condition characterized by fears and concerns about taking a test. C. permanent condition characterized by a sense of calmness when taking a test. D. temporary condition characterized by fears and concerns about taking a test.