Posttest scores may be influenced by completing a pretest, an instance of a threat referred to as:
A) instrumentation
B) order effects
C) attrition
D) regression
Ans: A
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Generally, qualitative researchers select a sample that is
a. selected purposely. b. as large as possible. c. generalizable to a target population. d. diverse demographically.
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An average percentile rank would be:
a. 30 b. 50 c. 70 d. 100
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The probability value is also called the p value.
a. True b. False
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Which of the following bridges children's informal knowledge with formal concepts?
A. Learning mathematical content and processes B. Opportunities presented for real problem solving C. Watching, listening, memorizing, and copying D. Offering particular time slots in the day for mathematics
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