The Kutcher Adolescent Depression Scale: Assessment of Its Evaluative Properties over the Course of an 8-Week Pediatric Pharmacotherapy Trial
Why this work is in the frame
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Bibliographic record
Abstract
OBJECTIVE: Self-report instruments commonly used to assess depression in adolescents have limited or unknown psychometric properties in this age group. We report the evaluative properties of the Kutcher Adolescent Depression Scale (KADS), a self-report scale designed specifically for identifying depressed adolescents and for monitoring symptom severity over time. METHODS: One hundred and six adolescents with major depression disorder (MDD) enrolled in an 8-week, double-blind, placebo-controlled study of paroxetine. Efficacy assessments were conducted on days 0 (baseline), 7, 14, 21, 28, 42, and 56 using the self-rated KADS and the clinician-rated Children's Depression Rating Scale-Revised (CDRS-R), Clinical Global Impression (CGI) of severity, and Global Assessment of Functioning (GAF) scale. The data were initially examined to establish which of the 16 KADS items showed greatest sensitivity to change. Subsequent analyses then compared the evaluative properties of three versions of the KADS: the full-length KADS, a six-item subscale previously established as a screening tool, and an 11-item subscale optimized for sensitivity to change. RESULTS: Within-subject correlations among subjects' KADS scores and their clinician-rated scale scores showed that clinician-rated changes in severity were significantly better corroborated by the 11-item KADS (mean correlations with the CDRS-R, CGI, and GAF: r = 0.69, 0.60, and -0.70, respectively) than by the six-item KADS (r = 0.62, 0.56, and -0.63, respectively) and at least as well corroborated as by the full-length KADS (r = 0.64, 0.56, and -0.67, respectively). Furthermore, in terms of mean percentage change in scores from day 0 to day 56, the 11-item KADS (59%) significantly outperformed the full-length KADS (46%) and all three clinician-rated scales (43%, 37%, and 29%, respectively) and at least matched the performance of the six-item KADS (56%). CONCLUSIONS: These results suggest that the 11-item self-rated KADS is a sensitive measure of treatment outcome in adolescents diagnosed with MDD.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it