This preliminary study investigated the effects of co-treatment by an adapted physical educator and speech-language pathologist on basic concept vocabulary learning in preschool children with Down syndrome as compared with the effects of treatment by either professional alone. In a Repeated Acquisition Design/Adapted Alternating Treatment study,…

Research has demonstrated that academic success is significantly related to word knowledge. Basic concept words are important because of their use in classroom directions and assessment instructions. It is important that educators assess a child's understanding of basic concept vocabulary at school entry. For children who demonstrate basic concept…