Increase in Precision when Estimating Parameters in Computer Assisted Testing Using Response Time

Increase in Precision when Estimating Parameters in Computer Assisted Testing Using Response Time A model is given in this article that associates response time to each item with its relative difficulty for the person examined. The properties of the model are presented with respect to the quantity of information, while deducing the parameter estimators. Likewise, an empirical study to prove the feasibility and plausibility of the model is carried out, feasibility being understood as the existence of adequate estimators for the parameters of the model and plausibility the adjustment of the model proposed to the items in a spatial aptitude test used to demonstrate this (“Rotation of solid figures”). For this, the model is tested with simulated data, comparing the behaviour of the estimates carried out on the model proposed with the estimates made by a programme such as BILOG-MG. It is shown that, with the exception of parameter c (pseudo-chance) which does not benefit from the inclusion of the response time, the estimates for the model are always higher for parameters a (discrimination) and b (difficulty) of the items, always giving rise to a higher correlation with the original data, in spite of the inefficiency of the computation algorithm employed. The results suggest that the use of response time supplies as much information or more than the use of very informative a priori distributions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quality & Quantity Springer Journals

Increase in Precision when Estimating Parameters in Computer Assisted Testing Using Response Time

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 2005 by Springer
Subject
Social Sciences; Methodology of the Social Sciences; Social Sciences, general
ISSN
0033-5177
eISSN
1573-7845
D.O.I.
10.1007/s11135-004-0437-y
Publisher site
See Article on Publisher Site

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