RESUMO
Resumen Introducción: La exclusión social es un fenómeno multifactorial que expone a las personas a desventajas económicas, institucionales y sociales. Frecuentemente los jóvenes padecen exclusión social que les genera amplias consecuencias negativas. Objetivo: Desarrollar y validar un instrumento para evaluar la percepción de exclusión social en jóvenes mexicanos. Método: Estudio centrado en la psicometría. En una primera fase se creó una versión preliminar del instrumento a partir de reactivos derivados de la literatura. La calidad de los reactivos fue evaluada por expertos y por un grupo de jóvenes de la población objetivo. En una segunda fase se incluyeron 415 jóvenes y se obtuvo la confiabilidad, validez y normas del instrumento. Resultados: La primera versión del instrumento contempló 60 reactivos evaluados en la segunda fase. La versión final del instrumento incluyó 35 reactivos agrupados en nueve factores que explicaron el 62,30 % de la varianza total. Esta estructura factorial mostró una consistencia interna alta (α= ,863). El análisis factorial confirmatorio indicó un adecuado ajuste (x2= 1,71; CFI= ,926; RMSEA= ,042) que brinda evidencia sobre la validez empírica del instrumento. Conclusión: El instrumento tiene adecuadas propiedades psicométricas para evaluar la percepción de exclusión social en jóvenes mexicanos, el cual puede ser empleado en la investigación psicosocial. El estudio de la exclusión social se lleva a cabo desde las ciencias políticas, la economía y la sociología; pero hasta el conocimiento de los autores, este estudio representa una de las primeras propuestas de su abordaje desde la psicología social considerando central la visión de los individuos y sus interacciones sociales con otros grupos.
Abstract Introduction: Social exclusion is a multifactorial phenomenon that involves economic, institutional and social disadvantages for diverse groups of people. Frequently, young people face social exclusion that causes them negative consequences. Objective: To develop and validate an instrument to evaluate social exclusion perception in young people from Mexico. Method: This is an article research result, which is based on psychometric principles. During the first phase, a preliminary instrument version was developed on the base of a literature review. Experts and a group of young Mexican people evaluate items' quality. During the second phase, 415 participants were enrolled and the instrument psychometric properties (reliability, validity, and interpretation) were estimated. Results: The first version instrument included 60 items which were evaluated in the second phase. The final version of the instrument has 35 items grouped in nine factors that explained 62,30 % of the total variance. This instrument's factorial structure showed high internal consistency (α=.863). The confirmatory factorial analysis indicated an acceptable fit (x2=1.71; CFI=.926; RMSEA=.042) which gave evidence of the instrument empirical validity. Conclusion: Instrument has good psychometric properties to evaluate social exclusion perception; therefore it can be used in the psychosocial investigation. Social exclusion phenomenon has been studied on base the politics, economic and sociology sciences; however until author knowledge, this is a pioneer proposal to study social exclusion based on the social psychology. This science is focused in the subject vision and their group social interactions.
RESUMO
OBJECTIVE: The functional assessment of cancer therapy-bone marrow transplant (FACT-BMT) is a widely used instrument to assess quality of life (QOL) in hematopoietic stem cell transplant (HSCT) patients, but there is little evidence of its validity in Latin American populations. This study evaluated the psychometric properties of the Spanish language version of the FACT-BMT in Mexican patients. METHOD: First, the original version was piloted with 15 HSCT patients to obtain an adequate cultural version, resulting in the adaptation of one item. After that, the new version was completed by 139 HSCT patients. RESULTS: The results showed a FACT factor structure that explains 70.84% of the total variance, a factor structure similar to the original FACT structure, and with a high internal consistency (Cronbach's alpha = 0.867). For the BMT subscale, the best factor structure included 17 items which explain 61.65% of the total variance with an adequate internal consistency (Cronbach's alpha = 0.696). SIGNIFICANCE OF THE RESULTS: The FACT-BMT was found to be a valid and reliable instrument to evaluate QOL in Mexican patients. Our results constitute new FACT-BMT empirical evidence that supports its clinical and research uses.