Evaluation of the multiple-stimulus without replacement preference assessment method using activities as stimuli

Area of Science:

• Behavioral Psychology
• Special Education
• Applied Behavior Analysis

Background:

• Identifying effective reinforcers is crucial for behavior intervention plans.
• Preference assessments systematically identify stimuli that motivate individuals.
• The multiple-stimulus without replacement (MSWO) is a common method for assessing preferences.

Purpose of the Study:

• To evaluate the accuracy of the MSWO preference assessment.
• To determine if MSWO can reliably identify preferred classroom activities for children with behavioral disorders.
• To test the predictive validity of MSWO in a classroom setting.

Main Methods:

• The study utilized the MSWO preference assessment to rank common classroom activities.
• Children with behavioral disorders participated in the assessment.
• The accuracy of MSWO predictions was tested by using preferred activities as reinforcers for completing math problems.

Main Results:

• An interaction effect was found between preference ranking (high, medium, low) and the number of problems completed.
• The MSWO generally confirmed previous findings on the accuracy of preference predictions.
• Individual differences were observed, explaining some deviations from predicted behavior.

Conclusions:

• The MSWO is a valuable tool for identifying reinforcers for children with behavioral disorders.
• Results support and extend previous research on MSWO accuracy.
• Acknowledging individual differences is important for refining preference-based interventions.