A comparison of intervention for problematic speech using reinforcement with and without preferred topics

Area of Science:

• Speech-language pathology
• Developmental psychology
• Behavioral science

Background:

• Listener responses influence conversational engagement in individuals with developmental disabilities.
• Previous studies combined listener interest with preferred topics as reinforcement.

Purpose of the Study:

• To examine listener interest's effect on problematic speech in individuals with developmental disabilities.
• To test the additive effects and participant preference for preferred topics as reinforcement for appropriate speech.

Main Methods:

• 8 participants with developmental disabilities received interventions focusing on listener interest and preferred topics.
• Study 1 assessed the impact of listener interest on problematic speech.
• Study 2 evaluated the additive effects and participant preference for preferred topics as reinforcement.

Main Results:

• Interventions were equally effective with or without contingent access to preferred topics.
• A majority of participants preferred the intervention that included contingent access to preferred topics.
• Caregivers and speech-language pathologists found the procedures acceptable and the speech changes satisfactory.

Conclusions:

• Listener interest is a key factor in improving conversational engagement for individuals with developmental disabilities.
• While not essential for effectiveness, preferred topics enhance participant preference for the intervention.
• The intervention is perceived as acceptable and effective by professionals and caregivers.