Psychometric properties of the Goratu Questionnaire "Perceptions of people with intellectual disabilities" of students of Secondary Education and High School

Abstract

INTRODUCTION. In this investigation, the psychometric properties of the Goratu Questionnaire entitled "Perceptions of people with intellectual disabilities" will be analysed. The investigation was carried out on a non probabilistic sample of 414 students from Compulsory Secondary Education as well as High School, from 5 private/concerted educational centres. METHOD. The questionnaires were carried out during the period 2017-2019 at 15 classrooms. For the elaboration of the questionnaire, an exhaustive bibliographic review was carried out and several areas of inquiry were identified from personal narratives of 8 adults with ID. Its reliability is obtained through the Cronbach a coefficient and its validity through an exploratory factor analysis applying the principal components method for factor extraction and a subsequent factor analysis to determine the optimal number of those factors. RESULTS. The Goratu Questionnaire is comprised of 5 dimensions with a total of 15 items, which explain 52.193% of the total variance and displays an adequate reliability index (a=.719). DISCUSSION. The psychometric results have been adequate obtaining values ​​higher or equal to the recommendations that the tools designed for the evaluation of social realities must satisfy. Therefore, the questionnaire can be considered useful to know the perception of students toward people with ID. The study raises some limitations such as the size and characteristics of the sample, as well as the pertinence of a possible confirmatory analysis.