Table 4.
Screening accuracy to detect a full scale IQ < 80 based on maximum Youden's Index for each measure
| Measure | N | Informant | Cutoff Score | AUC (95% CI) | Sens% (95% CI) | Spec% (95% CI) | LR+ | LR− | J |
| BRIEFa | 104 | Parent | >57 | 0.76 (0.61–0.90) | 75 (51–90) | 75 (64–84) | 3.00 | 0.33 | 0.50 |
| 98 | Teacher | >59 | 0.82 (0.70–0.94) | 79 (54–93) | 77 (66–86) | 3.46 | 0.27 | 0.56 | |
| SDQa | 103 | Child | >11 | 0.73 (0.63–0.84) | 68 (43–86) | 75 (64–84) | 2.74 | 0.42 | 0.43 |
| 104 | Parent | >14 | 0.78 (0.67–0.89) | 55 (36–80) | 87 (77–93) | 4.20 | 0.52 | 0.42 | |
| 99 | Teacher | >7 | 0.80 (0.70–0.94) | 84 (60–96) | 71 (64–84) | 2.93 | 0.22 | 0.56 | |
| PedsQLb | 103 | Child | <65 | 0.85 (0.77–0.93) | 84 (60–96) | 79 (68–86) | 3.93 | 0.20 | 0.63 |
| 103 | Parent | <51 | 0.82 (0.72–0.92) | 65 (41–84) | 87 (77–93) | 4.90 | 0.40 | 0.52 |
Abbreviations: AUC, area under the curve; BRIEF, Behavior Rating Inventory of Executive Functioning;34 J, Youden Index; LR+, likelihood ratio for a positive test; LR−, likelihood ratio for a negative test; PedsQL, Pediatric Quality of Life Inventory;36 SDQ, Strengths and Difficulties Questionnaire;35 Sens, sensitivity; Spec, specificity.
All AUCs were significant at P < 001.
a
Higher scores indicate increased dysfunction.
b
Higher scores indicate better quality of life.