THE EFFECTIVENESS OF A CONSTANT-TIME DELAY PROCEDURE ON TEACHING LIFETIME SPORT SKILLS TO ADOLESCENTS WITH SEVERE TO PROFOUND INTELLECTUAL DISABILITIES

This investigation used a 4 second constant time delay (CTD) procedure to teach lifetime sport skills to adolescents with severe to profound intellectual disabilities. The CTD procedure employed verbal descript ion plus physical assistance as the controlling prompt. The effectiven ess of the CTD procedure teas evaluated with a single-subject multiple probe design across three skills and replicated across four subjects. Results indicated that the CTD procedure was effective in teaching al l subjects to perform one step bowling, overhand throwing, and short d istance putting. These learned skills were maintained with at least 84 .5% accuracy over 42 days after terminating the CTD instruction. When efficiency data were analyzed, a mean of 16 sessions, a mean of 187 tr ials, and a mean of 258 minutes in teaching one skill to reach the ins tructional criterion were found across subjects while a mean percentag e of errors of 8.3% was obtained across subjects and skills.