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1.
Qual Life Res ; 22(1): 137-44, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-22331513

RESUMEN

PURPOSE: To test the psychometric properties of the Participation Scale (P-scale) among people with various disabling conditions in Eastern Nepal. METHODS: A sample of 153 individuals with disabling conditions was selected through systematic random sampling. The following psychometric properties were tested: structural validity (explanatory and confirmatory factor analyses), internal consistency, inter-tester reliability, construct validity and floor and ceiling effects. RESULTS: The explanatory factor analysis indicated a two-factor structure ('work-related participation' and 'general participation'). The confirmatory factor analysis suggested good model fit. The internal consistency measured with Cronbach's alpha was 0.93 for the whole scale and 0.78 and 0.93 for the subscales. The inter-tester reliability coefficient was 0.90. All hypothesized correlations were as expected confirming the construct validity of the scale. No floor or ceiling effects were identified for the whole scale; only the subscale 'work-related participation' showed a ceiling effect. CONCLUSION: The results of the analyses suggest that the psychometric properties of the P-scale are sufficient in the context of Eastern Nepal. Use of the P-scale will require (re-) confirmation of its validity in each new cultural context.


Asunto(s)
Personas con Discapacidad/psicología , Psicometría/métodos , Calidad de Vida , Encuestas y Cuestionarios/normas , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Casos y Controles , Evaluación de la Discapacidad , Análisis Factorial , Femenino , Humanos , Masculino , Persona de Mediana Edad , Nepal , Valor Predictivo de las Pruebas , Reproducibilidad de los Resultados , Factores Socioeconómicos
2.
Disabil Rehabil ; 34(19): 1596-607, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22372970

RESUMEN

PURPOSE: To validate a shortened version of the Participation Scale (P-scale) that will be quicker to use and to describe the factor structure found in the P-scale data in various study samples. METHODS: A large multi-country and multi-cultural database was compiled consisting of 5125 respondents. Item analysis, explanatory factor analysis and confirmatory factor analysis were applied to identify items for deletion and investigate the factor structure of the P-scale. RESULTS: The multi-country database included 11 databases from six different countries. Respondents were affected by a range of health conditions, including leprosy, HIV/AIDS, dermatological conditions and various disabilities. Of the respondents included 57% were male. The P-scale Short (PSS) contains 13 items. A two-factor structure, with factors named "work-related participation" (three items) and "general participation" (10 items), showed the best model fit (Comparative Fit Index = 0.983, Tucker Lewis Index = 0.979, Rooted Mean Square Error of Approximation = 0.061). The Cronbach's alphas were very good for both the whole scale and the subscales, 0.91, 0.83 and 0.90, respectively. Correlation between the two factors was high (r = 0.75) indicating that interpreting the P-scale as measuring an overall factor "participation" is still valid. A very high correlation (r = 0.99) was found between the full P-scale and the PSS. CONCLUSIONS: The findings suggest good validity of the P-scale across a range of languages and cultures. However, field testing needs to confirm the validity of the PSS to measure the level of social participation restrictions across cultures and health conditions.


Asunto(s)
Evaluación de la Discapacidad , Personas con Discapacidad/rehabilitación , Participación del Paciente/psicología , Psicometría/instrumentación , Encuestas y Cuestionarios , Actividades Cotidianas , Adulto , Anciano , Personas con Discapacidad/clasificación , Personas con Discapacidad/psicología , Análisis Factorial , Femenino , Humanos , Clasificación Internacional de Enfermedades , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados , Adulto Joven
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