Correlations between the two screening tests and between the screening and criterion measures were inconsistent with prediction rates based on classificational screening test scores. On the basis of correlational validity coefficients, relationships between measures in this study would have been overestimated. (Author/SBH)

Results of the research reported in this paper suggest that the development of mentally handicapped preschool children may not be measurable in distinct cognitive, social/emotional, physical motor, and language areas. This research further indicates that a testing instrument designed to measure the generalized factors of intelligence and social…