Abstract
While numerous treatments for ASD are available, intervention based on the principles and procedures of Applied Behavior Analysis (ABA) has garnered substantial scientific support. In this study we evaluated the effects of the lockdown during the COVID-19 pandemic outbreak, followed by quarantine provisions and during the three months after the resumption of activities. The study was conducted on a group of children taking part on a ABA-based intervention funded by the Local Health Authority (ASL) of the province of Caserta. In this study we considered a sample of 88 children who had been diagnosed with Autism Spectrum Disorder, aged between 18 and 30 months. The following inclusion criteria were observed: age at the time of diagnosis less than 30 months, absence of other neurological, genetic, or sensorineural pathologies, and severity level 1 measured by symptoms evaluation based on the ADOS 2 module T (used for diagnosis). During the lockdown children experienced improvements in communication, socialization, and personal autonomy. During the three months after the ABA treatment, the acquired skills were maintained but no significant improvement was demonstrated. In this study, we describe how parent training was significant in avoiding delays in the generalization of socially significant behaviors, following the drastic interruption of the treatment in this group of children.