The Halstead Tactual Performance Test
This procedure used a version of the Seguin-Goddard Form board, but it is done blindfold. The subject's task is to place all the 10 blocks into the board, using only the sense of touch. The task is repeated three times, once with the preferred hand, once with the non preferred hand, and once with both hands, after which the board is removed. After removing the blindfold, the subject is asked to draw a picture of the board, filling in all of the blocks he or she remembers in their proper locations on the board. Scores from this test include time to complete the task for each of the three trials, total time, number of blocks correctly drawn, and number of blocks correctly drawn in their proper locations on the board.