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The Developmental, Individual Difference, Relationship-Based model of intervention (DIR®)

D (Developmental) defines the fundamental capacities for joint attention and regulation,  engagement across a wide range of emotions, two-way communication, and complex social problem solving. These in turn govern the development of symbol formation, language and intelligence.


I (Individual Differences) refers to individual differences related to sensory reactivity and regulation, visual-spatial and auditory/language processing, and purposeful movement and communication.



R (Relationship) refers to relationships with caregivers that are the vehicle for affect-based developmentally appropriate interactions. Parents and families are central to this model because of their ongoing opportunities to support their child’s everyday functioning to carry out emotionally meaningful goals based on developmental levels. Cultural and environmental influences are also considered.

For more information on DIR - CLICK HERE