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Rasch analysis of the short form 8-item Parkinson’s Disease Questionnaire (PDQ-8)

✍ Scribed by Franco Franchignoni; Andrea Giordano; Giorgio Ferriero


Publisher
Springer Netherlands
Year
2008
Tongue
English
Weight
265 KB
Volume
17
Category
Article
ISSN
0962-9343

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## Abstract The aim of our study was to assess the longitudinal validity of the 8‐item Parkinson's Disease Questionnaire (PDQ‐8) in terms of responsiveness and test–retest reliability and to determine the minimally important difference (MID) for PDQ‐8 using the anchor‐based approach in Asians with