a. TBAQ-S domain scores (marginal means and +/-1 standard error) for toddlers with ASD, DD, and TD.
b. TBAQ-S scale scores (marginal means and +/-1 standard error) for toddlers with ASD, DD, and TD, by domain.
Legend: (***) p<0.001;(**) p<0.01;(*) p<0.05. Significance of post-hoc tests is reported with Bonferroni correction. Nonverbal DQ was included as a covariate.