Evaluation of the usability and accessibility of applications for mobile devices of pictograms in students with autism spectrum disorder of CAM Tehuacan

Abstract

The objective of this research was to analyze two applications that use pictograms installed on a mobile device with the Android operating system, through surveys applied to teachers, family members and students with autism spectrum disorder (ASD) to evaluate the criteria of usability, functionality, and accessibility. The Omega coefficient was used to evaluate the reliability of the applied instruments so as not to depend on the number of items, the acceptable value should range between 0.70 and 0.90. The evaluations obtained in each one of the surveys were: for teachers of the Multiple Attention Center (CAM) of Tehuacán 0.707 and for parents 0.705, demonstrating that the reliability of the instrument that was applied is adequate. With the results of this analysis, areas for improvement were detected focused on the development of a new mobile application adapted to the needs of students with ASD from the Tehuacán CAM, and as a contribution of a Mexican development in this segment.