Validity of the Ages and Stages Questionnaire to identify young children with gross motor difficulties who require physiotherapy assessment
Bibliographic record
Abstract
AIM: To determine if the Ages and Stages Questionnaire, Third Edition Gross Motor domain (ASQ-3-GM) score is predictive of motor performance on the Alberta Infant Motor Scale (AIMS) and/or Neurological, Sensory, Motor, Developmental Assessment (NSMDA). METHOD: This was a cross-sectional study involving analysis of a 1-year consecutive clinical sample of data obtained from children attending a specialist public outpatient service. Participants were 84 children aged 0 to 5 years (mean age 24.9mo, SD 18.4mo; 50 males, 34 females) referred for physiotherapy assessment of gross motor skills in a tertiary child development service. Parents completed the ASQ-3 questionnaire and children were assessed using the AIMS (if aged 0-18mo) and/or NSMDA (all children). To determine possible relationships between ASQ-3-GM scores with AIMS and NSMDA scores, we calculated Spearman's rank correlation coefficients. To determine validity of the ASQ-3-GM 'refer for further assessment' ('refer') cut-off score to identify gross motor difficulties we calculated frequency distributions and crosstab analyses. RESULTS: ASQ-3-GM scores correlated with AIMS centile rank (r=0.697, p<0.001) and NSMDA motor performance classification (r=-0.548, p<0.001). The ASQ-3-GM 'refer' cut-off had 77% sensitivity, 91% specificity, and 95% positive predictive value (PPV) to identify children that scored ≤10th centile on the AIMS and 57% sensitivity, 92% specificity, and 97% PPV to identify children with at least minimal dysfunction on the NSMDA. INTERPRETATION: The ASQ-3-GM 'refer' cut-off score is a valid predictor of gross motor difficulties in young children. WHAT THIS PAPER ADDS: The Ages and Stages Questionnaire, Third Edition Gross Motor domain (ASQ-3-GM) score is valid to identify gross motor difficulties in young children. The ASQ-3-GM 'refer' cut-off had 95% positive predictive value (PPV) for children that scored ≤10th centile on the Alberta Infant Motor Scale. The ASQ-3-GM 'refer' cut-off had 97% PPV for at least minimal dysfunction on the Neurological, Sensory, Motor, Developmental Assessment.
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How this classification was reachedexpand
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 | 0.000 | 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 | 0.000 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".