Additive Interspersal Technique
Age/Grade: Preschool – High School
Setting: School, Home, Clinic, In-patient
Individual or Group: Individual
Tier: 1, 2, & 3
Desired/ Appropriate Behavior:
Independent seatwork, task completion, on-task, homework completion, etc.
Skill Level: Fluency to maintenance
The additive interspersal procedure is an assignment modification strategy that does not involve reducing assignment demands, items, or opportunities to respond to target tasks, unlike some assignment strategies that reduce the amount of work or shorten the assignment. With this procedure, no target items, assigned items, are removed. Instead, brief and easier items are additively interspersed among items that require more time to complete.