Table 4.
Observed cumulative percentile for total number of errors on Trail Making Test Part A and Part B.
| Total Errors | Trails A Observed Cumulative Percentile | Total Errors | Trails B Observed Cumulative Percentile |
|---|---|---|---|
|
| |||
| 0 | 100 | 0 | 100 |
| 1 | 11.5 | 1 | 31.0 |
| 2 | 0.9 | 2 | 10.7 |
| 3+ | 0.2 | 3 | 3.8 |
| - | - | 4 | 1.2 |
| - | - | 5 | 0.5 |
| - | - | 6+ | 0.2 |
Note. Because Trail Making Test errors were highly skewed, there were too few positive observations to be able to use the normative approach described above, thus we provide cumulative percentiles. Table used with permission of Mayo Foundation for Medical Education and Research, all rights reserved.