INTRODUCTION
Autism Spectrum Disorders (ASD) are a group of neurodevelopmental disorders that have overlapping diagnostic criteria related to deficits in communication, and restricted interests and repetitive behaviour, Duffy and Healy ( as cited in Worley & Matson, 2012). Recent studies in the United States reported the diagnosis of an ASD in 1 out of 91 children of between age three to seventeen years (Kogan et al., 2009) and 1 out of 110 children age eight years (Rice, Baio, Van, Doernberg, Meaney