Table 4.
Contingency Table Values Based on Optimal Cut Scores for the Revised Get Ready to Read! and the Individual Growth and Development Indicators
| Risk Classification Based on TOPEL Scores |
|||||
|---|---|---|---|---|---|
| Truly At Risk | Truly Not At Risk | ||||
| Comparison | OCC | True Positive S+C+ |
False Negative S−C+ |
True Negative S−C− |
False Positive S+C− |
| TOPEL Early Literacy Index | |||||
| GRTR-R | .73 | 27 | 3 | 101 | 45 |
| IGDIs Score | .48 | 28 | 2 | 56 | 90 |
| IGDIs PA | .39 | 27 | 3 | 42 | 104 |
| IGDIs PN | .38 | 28 | 2 | 39 | 107 |
| TOPEL Print Knowledge | |||||
| GRTR-R | .64 | 33 | 3 | 79 | 61 |
| IGDIs Score | .51 | 34 | 2 | 56 | 84 |
| IGDIs PA | .33 | 34 | 2 | 24 | 116 |
| IGDIs PN | .46 | 33 | 3 | 48 | 92 |
| TOPEL Definitional Vocabulary | |||||
| GRTR-R | .24 | 19 | 1 | 24 | 132 |
| IGDIs Score | .16 | 19 | 1 | 9 | 147 |
| IGDIs PA | .18 | 18 | 2 | 13 | 143 |
| IGDIs PN | .38 | 18 | 2 | 49 | 107 |
| TOPEL Phonological Awareness | |||||
| GRTR-R | .45 | 52 | 4 | 27 | 93 |
| IGDIs Score | .38 | 52 | 4 | 15 | 105 |
| IGDIs PA | .41 | 51 | 5 | 21 | 99 |
| IGDIs PN | .43 | 52 | 4 | 23 | 97 |
Note. N = 176. TOPEL = Test of Preschool Early Literacy; GRTR-R = Revised Get Ready To Read!; IGDIs = Individual Growth and Development Indicators; PA = Phonological Awareness; PN = Picture Naming; OCC = Overall Correct Classification; S+ = at risk according to screening tool; S = not at risk according to screening tool; C+ = at risk according to criterion measure; C−= not at risk according to criterion measure.