Abstract
The study describes the relationships between autistic symptomatology severity, developmental heterogeneity, and chronological age for a group of 62 Brazilian children with ASD (59 boys, 3 girls); average chronological age was 42 months and 8 days (SD = 17 months, 15 days). Assessments were carried out with the Social Cognitive Evaluation Battery (SCEB), a French psychological assessment tool currently being validated in Brazil, and the Childhood Autism Rating Scale (CARS). Results indicated a negative correlation between developmental levels and intensity of autistic symptoms; a negative correlation between heterogeneity indices and developmental levels; and a positive correlation between heterogeneity indices and autistic symptomatology intensity. When comparing the group of younger children (less than 33 months) to the older children in the sample, the study demonstrates that early socio-emotional heterogeneity is a developmental marker in young children with ASD, and this finding can lead to personalized intervention programs.
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