The Test of Sensory Integration, which measures preschoolers' ability to organize, process, and synthesize input from different sensory channels, was evaluated in terms of domain and construct validity, interobserver reliability and decision reliability, and retest stability. Results suggested that total test scores can be used reliably and…

Procedures that have been used for assessing a discrepancy between ability and achievement of students suspected to have a learning disability are examined. Methodological deficiencies and/or unavailability of conclusive validity evidence are cited to support the conclusion that all of the procedures are worthless for screening purposes. (SEW)