Table 2. Classification metric statistics of models for different self-reported literacy profiles (Positive class: Adequate HL).
| ML Algorithm for Literacy Profiles |
Literacy Profile (Dependent Variable) |
Accuracy | C-statistic | Sensitivity | Specificity | Positive Predictive Value (PPV) | Negative Predictive Value (NPV) | # of Predicted limited vs adequate HL* |
|---|---|---|---|---|---|---|---|---|
| LDA | HLCOMB | 60.55 | 0.63 | 56.10 | 64.42 | 57.83 | 62.78 | 1142 / 939 |
| LDA | HLSUMTri | 63.58 | 0.61 | 39.32 | 79.32 | 55.23 | 66.82 | 1498 / 583 |
| SVM | HLAVG | 62.52 | 0.74 | 75.49 | 47.11 | 62.91 | 61.79 | 725 / 1356 |
* The numbers are a function of sample size for test set only