The Effects of Discrete Trial and Natural Environment Teaching on Adaptive Behavior in Toddlers With Autism Spectrum Disorder.

The literature has yet to review the differential effects of Natural Environment Teaching (NET) and Discrete Trial Teaching (DTT) on adaptive skills. A sample of 142 children diagnosed with ASD between the ages of 16 and 35 months received either DTT, NET, or both interventions (NET+ DTT). The Bayley Scales of Infant and Toddler Development (BSID) Adaptive Subscale and the Verbal Behavior Milestones Assessment and Placement Program (VB-MAPP) Barriers Assessment were used as baseline and posttest measures. Children who received NET and NET+DTT conditions showed significant improvements compared to the DTT condition indicating that the addition of NET leads to increased adaptive skills and decreased barrier behaviors in participants. DTT may also play a necessary foundational role for children with more significant delays. These results provide support for the use of a combination of teaching strategies in community-based early intervention and refine protocols for teaching adaptive skills to toddlers with ASD.

Early social referencing predicts object mastery motivation in infancy: Social antecedents of object mastery motivation.

The researchers sought to understand the typical development of social referencing and object mastery motivation in infancy and to determine the relationship between social referencing and object mastery behaviors in infants from 7 to 22 months of age. The study included 36 infants who were followed as part of a longitudinal study of at-risk infants but were not determined to need care in the neonatal intesive care unit at birth. Both mastery behaviors of persistence and success showed a statistically significant effect of age, while social behaviors remained stable from 7 to 22 months. Social behaviors at 7 and 10 months were correlated with persistence at 22 months and success at 16 to 22 months demonstrating that early social referencing predicts object mastery behaviors in later infancy. Further research should determine if this trend extends to early childhood.