Fast mapping of novel words for objects was compared in 48 children/adolescents with Down syndrome and 48 mental-age matched children. The groups did not differ in their ability to infer a connection between the novel word and referent, comprehend the novel word after a single exposure, and produce the novel word correctly. (Author/JDD)

When administered to 34 infants with handicaps, Bayley Scale mental age scores were an average of 2.1 months higher than Estimated Developmental Ages (EDA's) calculated from the Uzgiris and Hunt Scales. The EDA's were significantly and positively related to Bayley mental age, and sensorimotor play emerged as the best single correlate. (Author/JDD)