It is another common used term for an ABA therapy program. Early intensive behavioural intervention (EIBI) is an evidence-based, comprehensive therapy for Autistic children based on the principles of ABA. Is has been shown to be associated with the most dramatic improvements in prognosis for Autistic children (Eldevik, Hastings, Hughes, Jahr, Eikeseth, & Cross, 2009; Lovaas 1987; Peters- Scheffer, Didden, Korzilius, & Sturmey, 2011). The goal of EIBI is to change a child’s learning trajectory so that the child’s rate of learning approaches that of a typically developing peer. EIBI is characterized by the following: Early: Intervention begins as soon as a diagnosis is confirmed. EIBI may produce the greatest gains when intervention is started before age 2 Intensive: Intervention is provided for no less than 20 hours per week, with some studies recommending 30-40 hours per week Behavioural: Intervention is focused on the objective identification of skill deficits and behavioural excesses, and the use of teaching tactics derived from ABA to build functional skills.