The effectiveness of progressive time delay on teaching pedestrian skill to individual with intellectual disability

The purpose of the study was to examine the effectiveness of progressive time delay teaching method on teaching a pedestrian skill to individuals with intellectual disabilities. Besides, social validity of the study was determined by asking the opinions of the parents of the participants and the two policeman who took part in the generalization session regarding the functionality of the selected skill. The study was conducted with three participants with mild intellectual disabilities who were 10-11 years old. Multiple probe design across participants was used in the study. The results of the study revealed that the participants of the study acquired the targeted pedestrian skill, the first participant maintained the acquired skill one, three and five weeks after the implementation was completed whereas the third participant maintained the skill one, two and four weeks after the implementation was completed. Besides, all participants generalized the skill which they acquired on a simulation material to a real environment. Social validity results of the study revealed that the parents of the participants and the policeman who took part in the generalization session had positive opinions about the study. Key Words: Intellectual disability, Pedestrian skill, Progressive time delay