Longitudinal Changes in Beliefs by Stage of Physical Activity Adoption in Iranian Girls
Bibliographic record
Abstract
BACKGROUND: The aims of this study were to examine the relationships among physical activity (PA)-related beliefs and to determine to what extent Iranian adolescents in different stages of PA adoption differ in perceived benefits and barriers during a 3-year transition from junior high school to high school. METHODS: Data were collected from female adolescents in 2010 (N = 558), of whom 412 provided follow-up data in 2013. One-way analysis of variance and logistic regression were conducted for statistical analysis. RESULTS: Participants in the action and maintenance stages reported the greatest agreement with benefits. Pre-contemplators were about 4 times more likely to cite "not enough time" than preparers (OR = 3.95). Pre-contemplators were over 4 times more likely to cite not liking exercise than those in action and maintenance stages at baseline (OR = 4.32 and 4.85), a finding which was maintained at follow-up (OR = 3.66 and 8.65). CONCLUSIONS: These findings could help with the creation of interventions tailored to encourage pre-contemplators to progress toward adoption of PA. Providing transportation supports, enhancing time management, and mitigating boredom may be helpful strategies either to prevent relapse in adoption stages or to move females in early stages of change toward action and maintenance.
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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 | 0.001 | 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 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".