Using the Preschool Language Scale, Fourth Edition to characterize language in preschoolers with autism spectrum disorders

Autism Spectrum Disorders (ASD) are characterized by developmental impairments in language, behavior and inter-personal relationships that are noted since the first years of life. Early diagnosis and intervention are essential to the evolution and therefore research has been focused on identification strategies that can be used as early as the first year. However, the diagnosis usually is determined only latter