Standardized z-score

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Reference no: EM1390529 , Length: 400 Words

How does a researcher determine the meaning of a score on a norm-referenced test such as an IQ test?

Why are raw scores transformed to standardized scores, such as z-scores, in order to interpret those raw scores?

How do these standardized scores help researchers to compare the scores on two different tests with different means and standard deviations?

Reference no: EM1390529

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