| Titre : | Development of a Self-Report Physical Function Instrument for Disability Assessment: Item Pool Construction and Factor Analysis (2013) |
| Auteurs : | Christine McDonough ; Alan M. Jette ; Pengsheng Ni ; et al. |
| Type de document : | Article |
| Dans : | Archives of Physical Medicine and Rehabilitation (2013/9, 2013) |
| Article en page(s) : | p. 1653-1660 |
| Langues: | Anglais |
| Descripteurs : |
HE Vinci Assurance invalidité ; Personnes handicapées ; Rééducation et réadaptation |
| Mots-clés: | Disability evaluation ; Évaluation de l'incapacité ; Factor analysis ; statistical ; Analyse statistique factorielle ; Questionnaires |
| Résumé : |
Objectives
To build a comprehensive item pool representing work-relevant physical functioning and to test the factor structure of the item pool. These developmental steps represent initial outcomes of a broader project to develop instruments for the assessment of function within the context of Social Security Administration (SSA) disability programs. Design Comprehensive literature review; gap analysis; item generation with expert panel input; stakeholder interviews; cognitive interviews; cross-sectional survey administration; and exploratory and confirmatory factor analyses to assess item pool structure. Setting In-person and semistructured interviews and Internet and telephone surveys. Participants Sample of SSA claimants (n=1017) and a normative sample of adults from the U.S. general population (n=999). Main Outcome Measure Model fit statistics. Results The final item pool consisted of 139 items. Within the claimant sample, 58.7% were white; 31.8% were black; 46.6% were women; and the mean age was 49.7 years. Initial factor analyses revealed a 4-factor solution, which included more items and allowed separate characterization of: (1) changing and maintaining body position, (2) whole body mobility, (3) upper body function, and (4) upper extremity fine motor. The final 4-factor model included 91 items. Confirmatory factor analyses for the 4-factor models for the claimant and the normative samples demonstrated very good fit. Fit statistics for claimant and normative samples, respectively, were: Comparative Fit Index=.93 and .98; Tucker-Lewis Index=.92 and .98; and root mean square error approximation=.05 and .04. Conclusions The factor structure of the physical function item pool closely resembled the hypothesized content model. The 4 scales relevant to work activities offer promise for providing reliable information about claimant physical functioning relevant to work disability. |
| Disponible en ligne : | Oui |
| En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/journal/archives-of-physical-medicine-and-rehabilitation |
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