Groeipatrone by seuns tydens mid-adolessensie : 'n longitudinale studie van antropometriese veranderinge
Bibliographic record
Abstract
This study analysed the growth profiles stature, mass, arm span, sitting height and sitting-height-ratio of boys during the growth spurt within the mid-adolescent phase. A convenience sample of 73 Grade 8-10 boys (13.58-15.57 years) participated. Measurements were repeated three times annually, four months apart and sitting height ratio was calculated (sitting height/stature X 100). Protocols of the International Standards for Anthropometric Assessment (ISAK) and the Canadian Sports for Life were applied. Repeated measures over time ANOVA with a Bonferonni post hoc correction was use to analyse the data. The most significant increases (p=0.000) in stature, mass, arm span and sitting height occurred between 13.58 and 14.58 years while sitting-height-ratio showed the greatest change (p=0.002) between 14.58 and 15.57 years. Stature, mass and arm span exhibited parallel development up to 15 years after which further development levelled off, while no levelling off occurred in mass increase. The boys in this study entered the growth spurt in height on average prior to 13.58 years, but significant anthropometrical, motor and physical changes still occurred during their first year of high school (Grade 8), where high individual variability in growth changes were still evident.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.001 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".