There has been an exponential growth in assessment methods to diagnose disorders on the autism spectrum. Many reasons for this trend exist and include advancing knowledge on how to make a diagnosis, the heterogeneity of the spectrum, the realization that different methods may be needed based on age and intellectual disability. Other factors…

An area of research with autism spectrum disorders (ASD), which has received a considerable amount of attention recently is early diagnosis. This phenomenon is due largely to encouraging results from intensive intervention programs for children at very young ages. While five types of ASD exist, efforts in this area have focused almost exclusively…