Additional file 1 of Cross-cultural adaptation and validation of the Amsterdam Instrumental Activities of Daily Living questionnaire short version German for Switzerland

Marina Bruderer-Hofstetter, Mark A. Dubbelman, André Meichtry, Florian Koehn, Thomas Münzer, Roos J. Jutten, Philip Scheltens, Sietske A. M. Sikkes & Karin Niedermann
Additional file 1: Table 1. GRM Item parameters and item information values. Item parameter and item information values estimated in the reference sample used for differential item functioning detection in the Swiss sample. Item parameters are shown as parameter ± standard error. Abbreviations: GRM, Graded Response Model; α, discrimination parameter; β’s, extremity parameters.
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