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Reconstructing the Rasch-Built Myotonic Dystrophy Type 1 Activity and Participation Scale

INTRODUCTION: A previously published Rasch-built activity and participation scale specifically designed for patients with myotonic dystrophy type 1 (DM1) was criticized for having been constructed in a relatively small cohort of patients and containing items too broadly phrased for DM1 patients, thu...

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Autores principales: Hermans, Mieke C. E., Hoeijmakers, Janneke G. J., Faber, Catharina G., Merkies, Ingemar S. J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4618741/
https://www.ncbi.nlm.nih.gov/pubmed/26484877
http://dx.doi.org/10.1371/journal.pone.0139944
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author Hermans, Mieke C. E.
Hoeijmakers, Janneke G. J.
Faber, Catharina G.
Merkies, Ingemar S. J.
author_facet Hermans, Mieke C. E.
Hoeijmakers, Janneke G. J.
Faber, Catharina G.
Merkies, Ingemar S. J.
author_sort Hermans, Mieke C. E.
collection PubMed
description INTRODUCTION: A previously published Rasch-built activity and participation scale specifically designed for patients with myotonic dystrophy type 1 (DM1) was criticized for having been constructed in a relatively small cohort of patients and containing items too broadly phrased for DM1 patients, thus hampering its clinical use. METHODS: We report the results of the reconstructed Rasch-built DM1 activity and participation scale for clinical use (DM1-Activ(C)) through Rasch analyses using an expanded questionnaire containing 146 more simply phrased activity and participation inquiries completed by 340 patients with DM1. RESULTS: Through stepwise investigation including data quality control, model fit, response category ordering, local dependency and item bias, we succeeded in reconstructing the DM1-Activ(C) consisting of 25 items that showed good Rasch model fit, including construct convergent validity, items’ weights and persons’ locations reliability, and unidimensionality. CONCLUSION: The DM1-Activ(C) scale has been reconstructed and fulfills all modern clinimetric requirements. Its use is recommended in future longitudinal trials in patients with DM1 to determine its responsiveness.
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spelling pubmed-46187412015-10-29 Reconstructing the Rasch-Built Myotonic Dystrophy Type 1 Activity and Participation Scale Hermans, Mieke C. E. Hoeijmakers, Janneke G. J. Faber, Catharina G. Merkies, Ingemar S. J. PLoS One Research Article INTRODUCTION: A previously published Rasch-built activity and participation scale specifically designed for patients with myotonic dystrophy type 1 (DM1) was criticized for having been constructed in a relatively small cohort of patients and containing items too broadly phrased for DM1 patients, thus hampering its clinical use. METHODS: We report the results of the reconstructed Rasch-built DM1 activity and participation scale for clinical use (DM1-Activ(C)) through Rasch analyses using an expanded questionnaire containing 146 more simply phrased activity and participation inquiries completed by 340 patients with DM1. RESULTS: Through stepwise investigation including data quality control, model fit, response category ordering, local dependency and item bias, we succeeded in reconstructing the DM1-Activ(C) consisting of 25 items that showed good Rasch model fit, including construct convergent validity, items’ weights and persons’ locations reliability, and unidimensionality. CONCLUSION: The DM1-Activ(C) scale has been reconstructed and fulfills all modern clinimetric requirements. Its use is recommended in future longitudinal trials in patients with DM1 to determine its responsiveness. Public Library of Science 2015-10-20 /pmc/articles/PMC4618741/ /pubmed/26484877 http://dx.doi.org/10.1371/journal.pone.0139944 Text en © 2015 Hermans et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Hermans, Mieke C. E.
Hoeijmakers, Janneke G. J.
Faber, Catharina G.
Merkies, Ingemar S. J.
Reconstructing the Rasch-Built Myotonic Dystrophy Type 1 Activity and Participation Scale
title Reconstructing the Rasch-Built Myotonic Dystrophy Type 1 Activity and Participation Scale
title_full Reconstructing the Rasch-Built Myotonic Dystrophy Type 1 Activity and Participation Scale
title_fullStr Reconstructing the Rasch-Built Myotonic Dystrophy Type 1 Activity and Participation Scale
title_full_unstemmed Reconstructing the Rasch-Built Myotonic Dystrophy Type 1 Activity and Participation Scale
title_short Reconstructing the Rasch-Built Myotonic Dystrophy Type 1 Activity and Participation Scale
title_sort reconstructing the rasch-built myotonic dystrophy type 1 activity and participation scale
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4618741/
https://www.ncbi.nlm.nih.gov/pubmed/26484877
http://dx.doi.org/10.1371/journal.pone.0139944
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