IRCT20220311054258N1 IRCT 2022-05-29 Tabriz University of Medical Sciences The effect of signing education on speech and language skills of patients with autism spectrum disorders The effect of signing education on speech and language skills of patients with autism spectrum disorders: A clinical trial 2022-03-12 anticipated 90 Complete https://irct.ir/trial/62468 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Each participant was assigned a code Using a simple random allocation strategy and using a random number table method, eligible participants were divided into intervention or control groups. In this random method, a table without a specific pattern or order is used. With the help of a table of random numbers, one digit is assigned to each person. Numbers with even numbers are assigned to the control group and odd numbers to the actual intervention group. Participants did not know the true purpose of the study, Blinding description: Participants were randomized by the research team in their absence and none of them was aware of the intervention group they were in. N/A Autism spectrum. Intervention 1: Intervention group: only for this group, reference therapies will be used. In this study, 7 objects (mirror, comb, automatic, house, spoon, umbrella and glass) up to 7 verb images (driving, sleeping, smelling) , Reading, calling, licking and cuddling) are selected. 7 objects and pictures are taught for three months and three half-hour sessions per week. And then, without the examiner's knowledge of their group, they are examined by the Newsha test. Intervention 2: Control group: No special intervention will be performed for the control group and only the usual and traditional therapies available for speech therapy will be used. No - There is not a plan to make this available Justification or reason for not sharing IPD is Due to the lack of permission of the moral code