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Understanding Other MindsPerspectives from developmental social neuroscience$
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Simon Baron-Cohen, Michael Lombardo, and Helen Tager-Flusberg

Print publication date: 2013

Print ISBN-13: 9780199692972

Published to Oxford Scholarship Online: September 2013

DOI: 10.1093/acprof:oso/9780199692972.001.0001

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Issues in the measurement of judgmental accuracy

Issues in the measurement of judgmental accuracy

(p.104) Chapter 7 Issues in the measurement of judgmental accuracy
Understanding Other Minds

David A. Kenny

Oxford University Press

There is considerable interest in the measurement of individual differences in how well it is that people know others. However, it is often the case that these measures have low reliability. Various suggestions are made to improve the reliability of these measurements. First, using a computer simulation of an item response theory model, it is found that reliability increases for tests that have items that are relatively easy. For instance, for items with two alternatives, reliability maximizes not when items have about a 75 percent of being correct but when about 88 percent. Second, it is argued that psychometric criteria be used in the determination of what is the correct answer. Third, the measurement of individual differences may benefit by studying accuracy in more naturalized contexts. Although establishing adequate psychometric instruments for the measurement of these abilities is difficult, it is a goal that can and should be achieved.

Keywords:   interpersonal sensitivity, reliability, item response theory, social relations model

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