Comprehensive ABA interventions are often recommended when the person with autism spectrum disorder requires improvement in several areas of functioning such as social, communication functioning, academic skill acquisition, and other adaptive skills. The comprehensive ABA interventions are aimed at producing lasting changes in the overall functioning of the individual. Typically treatment lasts several months to a couple of years and delivered 25 to 40 hours per week. The comprehensive ABA intervention when used with younger children is also known as ‘Early Intensive Behavioural Interventions’ (EIBI). The EIBI is the most sought-after program for young children diagnosed with Autism.