title: A test for conditional independence between response time and accuracy.
abstract: An important distinction between different models for response time and accuracy is whether conditional independence (CI) between response time and accuracy is assumed. In the present study, a test for CI given an exponential family model for accuracy (for example, the Rasch model or the one-parameter logistic model) is proposed and evaluated in a simulation study. The procedure is based on the non-parametric Kolmogorov-Smirnov tests. As an illustrative example, the CI test was applied to data from an arithmetics test for secondary education.
authors.affiliation: Department of Methods and Statistics, Utrecht University, The Netherlands.|Cito Institute for Educational Measurement, Arnhem, The Netherlands.
authors.forename: Maria
authors.identifier: http://orcid.org/0000-0002-8376-5951
authors.initials: M
authors.lastname: Bolsinova
authors.affiliation: Cito Institute for Educational Measurement, Arnhem, The Netherlands.|University of Amsterdam, The Netherlands.
authors.forename: Gunter
authors.initials: G
authors.lastname: Maris
keywords: Kolmogorov-Smirnov tests; conditional independence; item response theory; response times; sufficiency