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Record W6902018597 · doi:10.6084/m9.figshare.12560585

Additional file 1 of Explaining the variation in the attained power of a stepped-wedge trial with unequal cluster sizes

2020· article· en· W6902018597 on OpenAlexaff

Bibliographic record

VenueOpen MIND · 2020
Typearticle
Languageen
FieldMathematics
TopicStatistical Methods and Bayesian Inference
Canadian institutionsCentre for Advancing Health OutcomesUniversity of British Columbia
Fundersnot available
KeywordsDistribution (mathematics)Cluster (spacecraft)Power (physics)Coefficient of variationVariation (astronomy)Approximation errorStatistical power

Abstract

fetched live from OpenAlex

Additional file 1: S.1 List of all evaluated scenarios. S.2 Cluster size re-distribution Calculation. S.3.1 Risk of obtaining low vs ICC for scenarios with equal distribution of clusters. S.3.2 Risk of obtaining low vs CV for scenarios with equal distribution of clusters. S.4.1 The relationship between TTC and attained power for all scenarios. S.4.2 The relationship between TGI and attained power for all scenarios. S.5 Distribution of the coefficient for TGI before and after adjusting for TTC. S.6 The RMSPE, maximum absolute prediction error, and average absolute prediction error for all scenarios. S.7 Side-by-side violin plot showing the distribution of difference between the predicted and simulated attained powers for the allocations not used in model fitting for scenario #64 and #103.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.011
metaresearch head score (Gemma)0.139
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesMetaresearch, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: Methods · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Dataset · Consensus signal: Dataset
Teacher disagreement score0.989
Threshold uncertainty score0.165

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0110.139
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0020.002
Bibliometrics0.0020.002
Science and technology studies0.0010.001
Scholarly communication0.0020.002
Open science0.0020.001
Research integrity0.0020.002
Insufficient payload (model declined to judge)0.8850.099

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.

Opus teacher head0.114
GPT teacher head0.368
Teacher spread0.253 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

Study designSimulation or modeling
DomainMethods
GenreDataset

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".

Quick stats

Citations0
Published2020
Admission routes1
Has abstractyes

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