Validation of libras technology for health education of deaf people

Abstract

Objective: To produce and validate an educational video in Libras (Brazilian Sign Language) for the health education of deaf people about AIDS and its transmission forms. Methods: Methodological development study, with psychometric referential, developed in an audio-communication school. Five judges and 18 deaf people participated. On data collection, the Likert scale was used and, on analysis, Cronbach's Alpha and Content Validity Index (CVI) were used. Results: The educational video “Libras communication: learning about Acquired Immunodeficiency Syndrome (AIDS)” is 20 minutes long. Video script was divided in three blocks with their respective items: Block A - AIDS, transmission forms, signs and symptoms, diagnosis, treatment, prevention; Block B - Kinds of protection. Block C - AIDS, a public health problem. Among judges, average CVI of 0.96 was obtained for the items and 0.90 for the psychometric criteria of general assessment. Among deaf people, average CVI of 0.87 was obtained. Total Cronbach's Alpha for the judges was 0.989 and, for the deaf subjects, 0.634. Conclusion: The educational video presents evidence of validity and representativeness to be used in health care and health education processes of the target population.