| Titre : | Development of a Computer-Adaptive Physical Function Instrument for Social Security Administration Disability Determination (2013) |
| Auteurs : | Pengsheng Ni ; Christine McDonough ; Alan M. Jette ; et al. |
| Type de document : | Article |
| Dans : | Archives of Physical Medicine and Rehabilitation (2013/9, 2013) |
| Article en page(s) : | pp. 1661-1669 |
| Langues: | Anglais |
| Descripteurs : |
HE Vinci Assurance invalidité ; Indicateurs d'état de santé ; Personnes handicapées ; Psychométrie ; Rééducation et réadaptation |
| Mots-clés: | Disability evaluation ; Évaluation de l'incapacité ; Disabled persons ; Psychometrics ; Questionnaires ; Models ; Statistical ; Modèles statistiques |
| Résumé : |
Objectives
To develop and test an instrument to assess physical function for Social Security Administration (SSA) disability programs, the SSA-Physical Function (SSA-PF) instrument. Item response theory (IRT) analyses were used to (1) create a calibrated item bank for each of the factors identified in prior factor analyses, (2) assess the fit of the items within each scale, (3) develop separate computer-adaptive testing (CAT) instruments for each scale, and (4) conduct initial psychometric testing. Design Cross-sectional data collection; IRT analyses; CAT simulation. Setting Telephone and Internet survey. Participants Two samples: SSA claimants (n=1017) and adults from the U.S. general population (n=999). Main Outcome Measures Model fit statistics, correlation, and reliability coefficients. Results IRT analyses resulted in 5 unidimensional SSA-PF scales: Changing & Maintaining Body Position, Whole Body Mobility, Upper Body Function, Upper Extremity Fine Motor, and Wheelchair Mobility for a total of 102 items. High CAT accuracy was demonstrated by strong correlations between simulated CAT scores and those from the full item banks. On comparing the simulated CATs with the full item banks, very little loss of reliability or precision was noted, except at the lower and upper ranges of each scale. No difference in response patterns by age or sex was noted. The distributions of claimant scores were shifted to the lower end of each scale compared with those of a sample of U.S. adults. Conclusions The SSA-PF instrument contributes important new methodology for measuring the physical function of adults applying to the SSA disability programs. Initial evaluation revealed that the SSA-PF instrument achieved considerable breadth of coverage in each content domain and demonstrated noteworthy psychometric properties. |
| Disponible en ligne : | Oui |
| En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/journal/archives-of-physical-medicine-and-rehabilitation |
Bibliothèques HE Vinci
