A two-step, test-guided Mokken scale analysis, for nonclustered and clustered data.
Letty KoopmanBonne J H ZijlstraL Andries van der ArkPublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2021)
We developed a two-step, test-guided MSA for scale construction that takes into account sample fluctuation of all scalability coefficients and that can be applied to item scores obtained by a nonclustered or clustered sampling design.