Evidence Based Intervention Network

Authors: Evidence Based Intervention Network

The success of reinforcement-based interventions is dependent upon an educator’s ability to determine reinforcing stimuli that function as powerful rewards/consequences. Class-wide rewards might not be rewardingfor all students, especially those who are at an increased risk for maladaptive academic and social behaviors.The application of preferred stimuli can serve as a powerful reward that increases a student’s success of adoptingappropriate alternative academic and social behaviors. Multiple Stimulus Preference Assessment without Replacement (MSWO) is a no cost diagnostic tool that generates a ranked order list of preferences for a specificindividual. MSWO assessments allow the student to rank stimuli that are most preferred among an array of options. Various stimuli can be utilized as choices in the preference assessment including: tangibles, opportunities for attention, and preferred activities. Choices can be presented in verbal, pictorial or written formats.

EBA Brief for Choice-Based Stimulus Preference AssessmentMultiple Stimulus Preference Assessment without Replacement (MSWO)


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