TILLS_Sensitivity_Specificity copy
Sensitivity and Specificity
Table 3.4. Sensitivity and specificity levels by age for all ages tested by the TILLS
| Age groups | Sensitivity | Specificity |
|---|---|---|
| 6-year-olds | 84% | 82% |
| 7-year-olds | 84% | 86% |
| 8-year-olds | 97% | 100% |
| 9-year-olds | 83% | 81% |
| 10-year-olds | 81% | 81% |
| 11-year-olds | 86% | 82% |
| 12-year-olds | 83% | 100% |
| 13-year-olds | 84% | 86% |
| 14- to 18-year-olds | 87% | 87% |
Note the TILLS does not include separate age norms between the ages of 14 and 18 years. This is because the skills tapped by the TILLS no longer show age-related change after age 13 years.
Excerpted from the TILLS™ Examiner’s Manual, and the Test of Integrated Language and Literacy Skills™ (TILLS™) by Nickola Wolf Nelson, Ph.D., Elena Plante, Ph.D., Nancy Helm-Estabrooks, Sc.D., and Gillian Hotz, Ph.D. Copyright © 2015 by Paul H. Brookes Publishing Co. All rights reserved.