Forty-seven children (ages 6 to 14) with mild mental retardation, of whom 27 also had an articulation disorder, were evaluated to identify distinguishing characteristics. Task performance results successfully discriminated 89.3 percent of the children with articulation disorders and 80 percent of the children with normal articulation. Fine motor skill subtests, verb and preposition scores, and socioeconomic status were also helpful. (Author/DB)