The Effect of Local Dependence on Item Parameter Estimation ——A Comparison Based on Comparable Item Parameters——
نویسنده
چکیده
In this study, we assessed the effect of local dependence on item parameter estimation based on comparable item parameters, using Markov Chain Monte Carlo method. The results showed that if we estimate item parameters ignoring local dependence, item parameter estimation will be more inaccurate than taking local dependence into account. Furthermore, it was supposed that the result of previous works, which were not based on comparable item parameters, was distorted.
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