Stability of performance on the Kaufman Assessment Battery for Children (K-ABC) and the Stanford-Binet Intelligence Scale: Fourth Edition (S-B:4) over a 1-year interval was examined with a sample of 28 nonhandicapped preschoolers. Each child was administered both tests in counterbalanced order and retested in 1 year with either the K-ABC or the S-B:4. Results indicated high stability for the K-ABC global scales and individual subtests. The verbal reasoning cluster of the S-B:4 seemed to provide a stable measure at the preschool level, but adequate stability was not demonstrated by the other area scores or the test composite. (PCB)