BACKGROUND: The purpose of the study was to assess the validity and reliability of the Medical Outcomes Study Short Form-12 version 2 (SF-12v2) instrument among adults with @entity2438 . METHODS: Study data was collected using a cross-sectional online survey of adults with @entity2438 enrolled with the Interactive @entity2438 Network (N=291). Factorial validity was assessed using confirmatory factor analysis technique. Item-scale correlations were examined for convergent validity. Known-groups validity was assessed by examining the variation in @entity2483 ( @entity2483 ) and @entity1032 ( @entity1032 ) scores by @entity2438 severity. Cronbach's alpha was determined for internal consistency reliability. Floor and ceiling effects were also assessed. RESULTS: A two-factor model with @entity2246 was found to have a good fit. The @entity2483 scale strongly correlated with the underlying items representing the scale. The @entity1032 scale had strong to moderate correlation with its underlying items. For known-groups validity, the @entity1032 score varied as expected with lower score observed among adults with high severity as compared to low severity; however, @entity2483 score varied inversely. Internal consistent reliability of the SF-12v2 was good, and there were no floor and ceiling effects. CONCLUSIONS: Except for known-groups validity, all other psychometric indicators performed well for the SF-12v2.

Validity and reliability of the Medical Outcomes Study Short-Form Health Survey version 2 (SF-12v2) among adults with XXXX .

@entity2246 :: ('MESH:D008661', 'Disease') :: ['correlated error terms'] @entity2483 :: ('MESH:C566443', 'Disease') :: ['PCS', 'Physical Component Summary'] @entity2438 :: ('MESH:D001321', 'Disease') :: ['autism', 'Autism'] @entity1032 :: ('MESH:D008607', 'Disease') :: ['MCS', 'Mental Component Summary']
@entity2438 :: (MESH:D001321,Disease) :: ['autism']
