Table 2.
Accuracy by stimulus type and relevant ratios on the Northwestern Assessment of Verbs and Sentences (NAVS) and Northwestern Naming Battery.
| Participant number | NAVS Production subtest |
NAVS Comprehension subtest |
Northwestern Naming Battery |
Agrammatism ratio a | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Canonical | Noncanonical | Ratio | Canonical | Noncanonical | Ratio | Nouns | Verbs | Ratio | ||
| P02 | 13 | 3 | 0.23 | 13 | 15 | 1.15 | 16 | 16 | 1.00 | 0.79 |
| P03 | 15 | 12 | 0.80 | 13 | 12 | 0.92 | 16 | 16 | 1.00 | 0.91 |
| P09 | 13 | 1 | 0.08 | 14 | 6 | 0.43 | 16 | 15 | 0.94 | 0.48 |
| P10 | 14 | 7 | 0.50 | 14 | 14 | 1.00 | 16 | 15 | 0.94 | 0.81 |
| P04 b | 0 | 0 | 0.00 | 11 | 7 | 0.64 | 13 | 12 | 0.92 | 0.78 |
| P06 | 3 | 0 | 0.00 | 13 | 9 | 0.69 | 14 | 11 | 0.79 | 0.49 |
| P08 b | 0 | 0 | 0.00 | 13 | 13 | 1.00 | 6 | 3 | 0.50 | 0.75 |
| P12 b | 0 | 0 | 0.00 | 10 | 7 | 0.70 | 5 | 5 | 1.00 | 0.85 |
| P11 b | 0 | 0 | 0.00 | 9 | 10 | 1.11 | 10 | 8 | 0.80 | 0.96 |
a
Calculated by averaging the three ratios.
b
Participant could not complete the NAVS Production subtest. This ratio was excluded from the agrammatism ratio for these participants. In general, ratios less than 1 are consistent with agrammatism.