Reliability and validity estimates of the Brigance K&1; screen based on a sample of disadvantaged preschoolers

The reliability and validity properties of the Brigance K&1; screen were examined with a sample of 134 Head Start children preparing to enter kindergarten. Reliability estimations indicated high interrater agreement and high overall internal consistency and test–retest reliabilities. Construct validation procedures included examination of the Screen's correlations with the cognitive processing and achievement subscales of the K‐ABC. Prediction/outcome analyses, intended to explore the test's accuracy in predicting special education status at the end of preschool, indicated a relatively high false negative rate and a moderate true positive rate. © 1999 John Wiley & Sons, Inc.