Empirical Initialization of the Trait Estimator in Adaptive Testing

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Linden van der, Wim J. (1999) Empirical Initialization of the Trait Estimator in Adaptive Testing. Applied Psychological Measurement, 23 (1). pp. 21-29. ISSN 0146-6216

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Abstract:A procedure for empirical initialization of the trait. estimator in adaptive testing is proposed that is based on the statistical relation between and background variables known prior to test administration. The relation is modeled using a two-parameter version of a logistic item response theory model with manifest predictors discussed in Zwinderman (1991). Equations are provided that are necessary for estimating the parameters from an incomplete sample of response data and data on background variables. The procedure is illustrated for an adaptive version of a test from the Dutch General Aptitude Test Battery, with response time on a prior test as a background variable.
Item Type:Article
Copyright:© 1999 Sage
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Behavioural Sciences (BS)
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Link to this item:http://purl.utwente.nl/publications/60203
Official URL:http://dx.doi.org/10.1177/01466219922031149
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