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A 2 × 2 Contingency Table for Optimal Uppercase Benchmark
| Uppercase letter-naming benchmark (18) | Letter-Word Identification
|
|
|---|---|---|
| At risk | Not at risk | |
| Does not meet (fail) | 38 | 113 |
| Meets (pass) | 14 | 204 |
Note. Using Table A2, sensitivity for the uppercase letter benchmark is calculated with 38/(38 + 14) = .73; specificity is 204/(113 + 204) = .64; positive predictive power is 38/(38 + 113) = .25; and negative predictive power is 204/(14 + 204) = .94.
