The Stanford-Binet: Fourth Edition and Kaufman Assessment Battery for Children were administered in counterbalanced order followed by the Cognitive Domain of the Battelle Developmental Inventory to a sample of 30 nonhandicapped, preschool children (13 males and 17 females). Correlations (corrected for restriction in range) among the three instruments were strong with global scale correlations ranging from .41 (Binet Composite-Battelle Cognitive Total) to .63 (Binet Composite-Kaufman Mental Processing Composite). Repeated measures analyses of variance indicated the Battelle Cognitive Total was significantly lower than the Binet Composite and Kaufman Mental Processing Composite. Similar analyses for global scores measuring similar constructs (memory, nonverbal reasoning and achievement) indicated no significant differences among the tests. Gender differences were indicated on the Sequential Processing Scale and Mental Processing Composite of the Kaufman and the Short-Term Memory Scale of the Binet. The results of the study are supportive of the validity of all three measures with the present sample of preschool students. (Author)