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Record W2595956641 · doi:10.1159/000362525

Unvollständige Daten in randomisierten dermatologischen Studien: Auswirkungen und statistische Methoden

2014· article· de· W2595956641 on OpenAlexaff
Michael A. McIsaac, Richard J. Cook, Melanie Poulin-Costello

Bibliographic record

VenueKompass Dermatologie · 2014
Typearticle
Languagede
FieldMathematics
TopicStatistical Methods in Clinical Trials
Canadian institutionsAmgen (Canada)University of Waterloo
Fundersnot available
KeywordsGynecologyMedicineArt

Abstract

fetched live from OpenAlex

Randomisierte klinische Studien können den höchsten Evidenzgrad für die Wirksamkeit einer therapeutischen Maßnahme liefern. Wenn einzelne Teilnehmer vorzeitig aus einer Studie herausfallen, ist es häufig nicht möglich, die gewünschten Verlaufsparameter zu ermitteln; das führt zu unvollständigen Daten. Die vorliegende Arbeit gibt einen Überblick über verschiedene Mechanismen, die zu unvollständigen Daten führen können. Außerdem werden die Auswirkungen dieser Mechanismen diskutiert und Strategien für den Umgang mit unvollständigen Daten vorgestellt. Die genannten Aspekte werden im Kontext klinischer dermatologischer Studien besprochen. Weiterhin werden praktische Empfehlungen für die Planung von Studien und die Interpretation von Ergebnissen aus Studien mit möglicherweise unvollständigen Daten gegeben.Übersetzung aus Dermatology 2013;226:19-27 (DOI: 10.1159/000346247)

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)0.658
metaresearch head score (Gemma)0.803
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesMetaresearch
Consensus categoriesMetaresearch
DomainCandidate signal: Methods · Consensus signal: Methods
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.342
Threshold uncertainty score0.422

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.6580.803
Meta-epidemiology (narrow)0.0040.004
Meta-epidemiology (broad)0.0120.019
Bibliometrics0.0070.012
Science and technology studies0.0020.013
Scholarly communication0.0120.010
Open science0.0050.007
Research integrity0.0080.012
Insufficient payload (model declined to judge)0.0210.003

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 head0.473
GPT teacher head0.548
Teacher spread0.075 · 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; the direct Gemma label and the distilled Codex classifier agree on what is shown here.

Study designNot applicable
DomainMethods
GenreMethods

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
Published2014
Admission routes1
Has abstractyes

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