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Concurrent and Predictive Validity of the Cognitive Adaptive Test/Clinical Linguistic and Auditory Milestone Scale (CAT/CLAMS) and the Mental Developmental Index of the Bayley Scales of Infant Development

Division of Developmental and Behavioral Pediatrics, Department of Pediatric and Adolescent Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905

Frank R. Brown, III, PhD, MD

Mc Leod Institute for Neurodevelopmental Pediatrics, Florence, South Carolina

J. Kennard Fraley, MPH

Departments of Pediatrics, USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas

Antolin M. Liorente, PhD

Departments of Pediatrics, Psychiatry, Baylor College of Medicine, Houston, Texas

Judith Rozelle, MS

Marie Turcich, MS

Departments of Pediatrics, Baylor College of Medicine, Houston, Texas

Craig L. Jensen, MD

William C. Heird, MD

Departments of Pediatrics, USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas

The Cognitive Adaptive Test/ Clinical Linguistic and Auditory Milestone Scale (CAT/CLAMS) was designed for use by primary pediatric health care providers to identify children with developmental delays. This study assesses the concurrent and predictive validity of CAT/CLAMS developmental quotient (DQ) scores and the Mental Developmental Index (MDI) of the Bayley Scales of Infant Development in healthy children without risk factors for developmental delay. Overall CAT/CLAMS DQ scores correlated significantly with Bayley MDI scores at both 12 (r=0.393; p=0.008) and 30 months (r=0.742; p=0.0001) of age. Overall CAT/CLAMS DQ scores at 12 months of age also correlated modestly with Bayley MDI scores at 30 months of age (r=0.181; p=0.036). Despite its modest predictive validity at 12 months, its satisfactory concurrent validity plus its ease and speed of administration make the CAT/CLAMS a reasonable choice for assessment of early development by primary pediatric health care providers.

Clinical Pediatrics, Vol. 42, No. 5, 427-432 (2003)
DOI: 10.1177/000992280304200507


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