Evaluating an in-school injury prevention programme's effect on children's helmet wearing habits
Bibliographic record
Abstract
PRIMARY OBJECTIVE: To evaluate the effectiveness of the Bikes, Blades and Boards (BB&B) programme. It was hypothesized that children who participated in the BB&B programme would demonstrate greater knowledge of how to wear their helmets safely than a control group who did not participate in the programme and retain their skills when assessed 1 year later. RESEARCH DESIGN: Single blind cluster randomized design. METHODS AND PROCEDURES: Twelve classes of grade 2 students (n = 162) participated; six classes were assigned to an experimental or control group. A blinded research assistant, taking 3-5 minutes per child, completed the Helmet Checklist with each group on two occasions and scores of the experimental group (post-BB&B programme) were compared to the control group. The experimental group was reassessed using the Helmet Checklist, 1 year later. EXPERIMENTAL INTERVENTIONS: The BB&B programme consisted of a presentation, bicycle helmet checklist, demonstration and individual practice and feedback. MAIN OUTCOMES AND RESULTS: Children in the experimental group showed a better knowledge of how to wear their helmets safely compared to the control group (F = 51.84, CI = 9.11-9.71) and retained this knowledge 1 year after participating in the BB&B programme. CONCLUSIONS: The BB&B programme is effective in teaching grade 2 children how to wear their helmets correctly, which is knowledge they retain for at least 1 year.
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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 | 0.004 | 0.003 |
| 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 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".