Análise das características psicométricas da escala de avaliação da confiança no equilíbrio específico da atividade (CEEA) com recurso ao modelo de rasch, numa amostra geriátrica

Abstract

This research aimed to perform an analysis of the psychometric characteristics of the Activity Specific Balance Confidence (CEEA) assessment scale using the Rasch Model. The sample consisted of 184 individuals of both sexes of which 104 (56.5%) individuals were female and 80 (43.5%) male with a mean age of 73.8 years (SD = 7.16. The results indicate that the original system of eleven EAEC scale response categories is not working correctly, and it was found that four Linacre guidelines were not successfully overcome, namely in terms of the regular distribution of observations; homogeneous increase in the averages of people choosing categories; adjustment statistics and homogeneous increase of the calibration steps (Fk). These results make it possible to identify a fragility of the scale and therefore an aggregation of response categories has been considered in order to suppress the observed weaknesses. An adequate solution was obtained by aggregating seven response categories from the EAEC scale. After reanalysis, the results were found to comply with all Linacre guidelines, giving better psychometric characteristics and greater effectiveness and utility at the CEEA scale.

Date of Award	2019
Original language	Portuguese
Supervisor	PAULO JORGE FERREIRA LOPES (Supervisor) & JORGE ALEXANDRE GASPAR OLIVEIRA (Supervisor)