Reducing time limits: a means to increase behavior of retardates

Area of Science:

• Special Education
• Applied Behavior Analysis

Background:

• Traditional special education often expands task time for students with intellectual disabilities.
• This study investigates the counterintuitive approach of time restriction to enhance academic performance.

Purpose of the Study:

• To evaluate the impact of restricting temporal limits on the academic performance of educable mentally retarded children.
• To compare the effects of abrupt versus graduated time limit reductions.

Main Methods:

• Three educable mentally retarded children participated in daily math sessions with token reinforcement.
• A reversal design assessed abrupt (20-5-20 min) and graduated (20-15-10-5-20 min) time limit reductions.

Main Results:

• The graduated sequence increased correct math responses by 125% to 266%, with sustained gains.
• Abrupt time reductions caused emotional interference and decreased performance by 25% to 80%.

Conclusions:

• Systematically restricting temporal limits can enhance academic performance in slow learners.
• Graduated time reductions are more effective and less disruptive than abrupt changes for students with intellectual disabilities.