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Authors: Patricia Gilavert and Valdinei Freire

Affiliation: School of Arts, Sciences and Humanities, University of São Paulo, São Paulo, Brazil

Keyword(s): Computerized Adaptive Testing, Stop Criteria, Combine Stop Criteria, Threshold to Stop.

Abstract: Computerized Adaptive Testing is an assessment approach that selects questions one after another while conditioning each selection on the previous questions and answers. CAT is evaluated mainly for its precision, the correctness of estimation of the examinee trait, and efficiency, the test length. The precision-efficiency trade-off depends mostly on two CAT components: an item selection criterion and a stop criterion. While much research is dedicated to the first, stop criteria lack relevant research. We contribute with a comprehensive evaluation of stop criteria. First, we test a variety of seven stop-criteria for different setups of item banks and estimation mechanism. Second, we contribute with a precision-efficiency trade-off method to evaluate stop criteria. Finally, we contribute with an experiment considering simulations over a myriad of synthetic item banks. We conclude in favor of the Fixed-Length criterion, as long it can be tuned to the item bank at hand; the Fixed-Length criterion shows a competitive precision-efficiency trade-off curve in every scenario while presenting zero variance in test length. We also highlight that estimation mechanism and item-bank distribution have a influence over the performance of stop criteria. (More)

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Paper citation in several formats:
Gilavert, P. and Freire, V. (2021). Comprehensive Empirical Analysis of Stop Criteria in Computerized Adaptive Testing. In Proceedings of the 13th International Conference on Computer Supported Education - Volume 1: CSEDU; ISBN 978-989-758-502-9; ISSN 2184-5026, SciTePress, pages 48-59. DOI: 10.5220/0010500200480059

@conference{csedu21,
author={Patricia Gilavert. and Valdinei Freire.},
title={Comprehensive Empirical Analysis of Stop Criteria in Computerized Adaptive Testing},
booktitle={Proceedings of the 13th International Conference on Computer Supported Education - Volume 1: CSEDU},
year={2021},
pages={48-59},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010500200480059},
isbn={978-989-758-502-9},
issn={2184-5026},
}

TY - CONF

JO - Proceedings of the 13th International Conference on Computer Supported Education - Volume 1: CSEDU
TI - Comprehensive Empirical Analysis of Stop Criteria in Computerized Adaptive Testing
SN - 978-989-758-502-9
IS - 2184-5026
AU - Gilavert, P.
AU - Freire, V.
PY - 2021
SP - 48
EP - 59
DO - 10.5220/0010500200480059
PB - SciTePress