Exam 4: Item Analysis and Standardization of Tests

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Achievement tests are typically standardized on larger samples than other types of tests.

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Equal numerical differences imply equal differences in whatever is being measured only with

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In item sampling, different sets of items are administered to different samples of people.

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Which of the following types of scale is an ?open-ended? standard score scale?

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What is the difference between an item characteristic curve and an item response curve? Include in your discussion a description of differences among the various item response models.

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If the response curve for item A has a steeper slope than the response curve for item B, then item A has a higher __________ index than item B.

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Given that the mean WAIS IQ is 100 and the standard deviation is 15, if Johnny?s WAIS IQ is 125 what is his corresponding z score?

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The purpose of a criterion-referenced test is to determine

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Which of the following standard scores is equivalent to a percentile rank of 50?

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The problem of unequal score units is least troublesome in the case of __________ norms.

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