The Wechsler Intelligence Scale for Children--Revised and the Wechsler Adult Intelligence Scale--Revised were administered in a conterbalanced design to 14 educable mentally handicapped 16-year-olds. Verbal, Performance, and Full Scale IQ scores were compared. Correlations and matched t-tests were computed and the results indicated that Verbal and Full Scale IQ scores were not equivalent. Results conformed to previous findings across Wechsler Scales for this subject group and suggested differences between the two tests among 16-year-olds with below normal intelligence. Findings further suggested the possibility that differential classification and placement may be associated with selection of a particular Wechsler scale. (Author/CL)