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Question
The most common procedure to try to ensure that experimental and control groups do not differ from each other in important ways at the beginning of a research study is random assignment of subjects to treatment and control groups.Answer
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For which statistical test does the formula given below apply? A.Z-test
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A.Excel
B.SPSS
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A.index numbers
B.rank orders
C.elaborated numbers
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Data with which type of distribution are appropriate for division based on the median split?
A.normally distributed
B.unimodal distribution
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When a researcher combines the "Strongly Disagree" and "Disagree" responses on a Likert scale item to a single "Strongly Disagree/Disagree" percentage, this is an example of _____.
A.data indexing
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C.interval; large
D.nominal; small
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A.primary and secondary errors
B.Type I and Type II errors
C.critical and noncritical errors
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