Effect of Age on Performance of the Trail Making Test

This study used 197 brain-damaged and 244 control Ss. Performance correlated significantly with IQ but was independent of age. In contrast to other reports in the literature, the results indicate that Reitan's (1958) cut-off scores work equally for older and younger Ss. It was demonstrated that these cut-off scores did not result in an increasing number of either false negatives or false positives when Ss were considered in 5-yr. age intervals from 15 to 65 yr. of age.