Exam 3: Norms and Reliability

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For which kind of reliability is the Spearman-Brown formula relevant?

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C

Which of the below is an index of the internal consistency of a test or scale?

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C

In a frequency distribution, the sums of the frequencies for all intervals will ______the total number of scores in the sample.

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B

The sources of measurement error are

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Correlations of +1.0 are extremely rare in psychological research and usually signify

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A half-test reliability of .7 is equivalent to an estimated full test reliability of about

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Percentile scores have one major drawback:

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The most commonly used statistical index of variability in a group of scores is the

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What approach do most test developers use in choosing a norm group?

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Which of the following necessarily has a mean of 50 and a standard deviation of 10?

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A WAIS-III IQ of 115 could also be reported as a

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Suppose that a college freshman earned 125 raw score points on a vocabulary test where the normative sample averaged 100 points with SD of 15 points). Suppose, in addition, he earned 110 raw score points on a spatial thinking test where the normative sample averaged 90 points with SD of 20 points). In which skill area does he show greater aptitude, vocabulary or spatial thinking?

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Methods for computing the reliability coefficient for a test involve

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What statement best characterizes a "raw score"?

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The reliability of a speed test should be based on the

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The standard error of the difference is used to determine

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For which types) of scores are negative values possible?

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A C scale consists of______ units.

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The Greek symbol "sigma" stands for

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Which kind of test is interpreted in relation to specified standard of mastery?

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