Showing papers by "Mark Shevlin published in 1997"
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TL;DR: The authors examined the effect of combining the scores of multiple item scales, by adding, to form a single composite score is ubiquitous in psychological research and showed that the use of composite scores will generally tend to result in an underestimation of the population regression effect when the reliability of the items comprising the composite scores is low.
27 citations
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13 citations
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10 citations