Limitations Of The Digit Symbol Substitution Test

When scoring the dsst, speed and accuracy are both taken into account, allowing the examiner to use norms or refer to research findings for comparison. As illustrated below, the dsst is. Scores between the tests were found to display adequate agreement with 90% of score differences falling between 22. 66 and 22. 75 (90% limits of agreement=22. 91 to 22. 99), and. As illustrated below, the dsst is clinically useful because it is sensitive to cognitive deficit in a wide range of brain diseases and conditions. However, without further testing of the patient, the dsst is not informative about the nature of the deficit.