Using video modeling to teach the picture exchange communication system

Area of Science:

• Speech-Language Pathology
• Applied Behavior Analysis
• Assistive Technology

Background:

• The Picture Exchange Communication System (PECS) is an evidence-based intervention for individuals with limited speech.
• Professionals require effective training to implement PECS accurately.
• Traditional PECS training can be time-intensive.

Purpose of the Study:

• To investigate the efficiency and effectiveness of video modeling (VM) alone for training future professionals in the initial phases of PECS.
• To compare VM-based training with traditional, more intensive methodologies.

Main Methods:

• A nonconcurrent multiple baseline design across three participants was employed.
• Participants were trained in the first three phases of PECS using video modeling (VM) with optional verbal feedback.
• Skill acquisition was measured following VM intervention.

Main Results:

• All three participants demonstrated immediate skill acquisition after exposure to VM alone.
• Only one participant required minimal verbal feedback during Phase 1.
• Large effect sizes indicated the effectiveness of VM-based training.

Conclusions:

• Video modeling (VM) is an efficient and effective method for training professionals in PECS implementation.
• VM-based training offers a potentially more streamlined alternative to traditional, intensive training approaches.
• This methodology supports the rapid development of essential PECS skills in future professionals.