Digit letter substitution test (DLST) as an alternative to digit symbol substitution test (DSST)

In the present study, a modification has been suggested in DSST to overcome some of its demerits. In the new test, DLST, the symbols have been substituted by letters from the English alphabet. The new test seems to be stable, valid and sensitive. It has similar basic structure and sensitivity with added advantage of better understanding by subjects, easy preparation of parallel work sheets and faster evaluation. We propose that the new test may serve as a good alternative to DSST.