In 1973, kindergarten children in a rural village in Texas were tested with the McCarthy Scales of Children's Abilities. For the next 2.5 years, children from successive grades in the same school were given the same test. During the entire period over 200 children had been tested, but of the original 53 pupils only 20 took the test all three times and 31 who took the test in early 1975 were present to retake it in 1976. The consistent correlations over the years for the General Cognitive Index--approximately .85 to .90--suggest that the McCarthy scales is a highly stable test. Also the consistency of the scores is highlighted by the low correlations for those scales on which the greatest gains were made as the number of children decreased. (Author/MV)