Method for Developing Communication Skills in Autism - DHACA: appearance and content validation

Purpose: To validate the appearance and content of the DHACA method to develop communication skills in autism. Methods: This qualitative and quantitative validation study included 10 speech-language-hearing judges with expertise in alternative communication. The judges received the communication book, the description of the principles, skills, and strategies in the DHACA method, and a form with items for them to appraise the appearance and content of the method. The validity was calculated with the content validity index. Results: The response analysis made it possible to calculate the degree of agreement between judges and develop the new instrument version. The calculation of the content validity index revealed excellent content validity. The judges made suggestions regarding the content of the communication book, texts regarding the participation of communication partners and modeling, using cues, and communicative skills. Conclusion: The degree of agreement between judges ensured the validation of the appearance and content of the DHACA method, considering the items alone and the whole instrument. Hence, its use can be recommended for speech-language-hearing clinical practice.