Abstract:Mokken scale analysis is a popular method to evaluate the psychometric quality of clinical and personality questionnaires and their individual items. Although many empirical papers report on the extent to which sets of items form Mokken scales, there is less attention for the effect of violations of commonly used rules of thumb. In this study we investigated the practical consequences of retaining or removing items with psychometric properties that do not comply with these rules-of-thumb. Using simulated data,… Show more
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