Validity of Curriculum-Based Scales With Young Neurodevelopmentally Disabled Children: Implications for Team Assessment

Recent surveys in early childhood special education and developmental school psychology reveal that criterion-referenced or curriculum-based developmental assessment (CBA) is the primary form of measurement employed by interdisciplinary early intervention teams. Despite their wide use, little technical adequacy data are available on the validity of CBA instruments with specific populations of handicapped preschoolers. This research analyzed the concurrent validity of two norm-based and six curriculum-based scales commonly used within community early intervention programs with a sample of 50 infants and preschool children having diverse neurodevelopmental and neurobehavioral deficits. Results supported the concur- rent validity of CBA measures despite some significant interscale differences. Based on these results, guidelines are offered regarding “best practices” in the use of CBA systems by early intervention teams.