This study extended the work of Bohnen, Jolles, and Twijnstra (1992) b
y examining the construct network effects of modifying the Stroop Colo
r and Word Test to include a set-shifting component. College students
were administered a number of neuropsychological measures and three ve
rsions of the interference task in the SCWT. Scores obtained for each
of the interference versions were correlated with scores on the other
tests. Results indicated that the construct network of the SCWT is lar
gely unaffected by these modifications. However, scores on the most mo
dified version of the SCWT showed significantly greatest convergence w
ith scores on TMT Part B as compared to correlations of other SCWT ver
sions and neuropsychological tests.