Adaptive Speed Tests

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Authors

The assessment of a person's traits such as ability is a fundamental problem in human sciences. We focus on assessments of traits that can be measured by determining the shortest time limit allowing a testee to solve simple repetitive tasks, so-called speed tests. Existing approaches for adjusting the time limit are either intrinsically nonadaptive or lack theoretical foundation. By contrast, we propose a mathematically sound framework in which latent competency skills are represented by belief distributions on compact intervals. The algorithm iteratively computes a new difficulty setting, such that the amount of belief that can be updated after feedback has been received is maximized. We provide theoretical analyses and show empirically that our method performs equally well or better than state of the art baselines in a near-realistic scenario. © LWA 2013 - Lernen, Wissen and Adaptivitat, Workshop Proceedings. All rights reserved.
Original languageEnglish
Title of host publicationProceedings of the German Workshop on Knowledge Discovery and Machine Learning
EditorsAndreas Henrich, Hans-Christian Sperker
Number of pages4
Place of PublicationBamberg
PublisherLehrstuhl für Medieninformatik - Universität Bamberg
Publication date2014
Pages86-90
Publication statusPublished - 2014
Externally publishedYes

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