Comparison of 32 children (ages 5-7) with specific language impairments (SLI) and normally developing children matched for either age or language development found that the SLI children, unlike either control group, performed significantly better for morpheme production tasks in an imitation instruction condition than in a modeling condition.…

An observational learning paradigm was used to instruct five elementary students with mild or moderate mental retardation to monitor their comprehension of incomplete instructions. Although all subjects eventually demonstrated observational learning, performance varied depending on the type of instruction inadequacy. During posttesting all…