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Record W1255795715 · doi:10.1023/a:1014406429385

Content validity for dementia of three generic preference based health related quality of life instruments

2002· article· en· W1255795715 on OpenAlexaff
Michel Silberfeld, Sergio Rueda, Murray Krahn, Gary Naglie

Bibliographic record

VenueQuality of Life Research · 2002
Typearticle
Languageen
FieldEconomics, Econometrics and Finance
TopicHealth Systems, Economic Evaluations, Quality of Life
Canadian institutionsUniversity of TorontoToronto Rehabilitation InstituteUniversity Health NetworkBaycrest Hospital
Fundersnot available
KeywordsRespondentQuality of life (healthcare)DementiaScale (ratio)Quality of Life ResearchPsychologyQuality (philosophy)GerontologyPreferencePublic healthEQ-5DContent validityApplied psychologyPsychometricsMedicineClinical psychologyHealth related quality of lifeStatisticsNursingDiseaseMathematics

Abstract

fetched live from OpenAlex
No abstract in any covered source. Its absence is recorded, not treated as a negative.

No abstract. This is not a gap in this database; OpenAlex has none either. 23.3% of the frame is in this state, and the screen finds HALF as much metaresearch here, so the absence is a measured bias rather than a missing field.

How this classification was reachedexpand

The three-model screen

all 5,600 screened works →

1 of 3 models called this metaresearch. This work is contested: it sits on the field's empirical boundary, and whether it counts depends on which model you asked. It is one of the 51 works in the disagreement dossier.

stratum: aff_core · design weight: 5595.24 (the sample is stratified; any rate computed without the weight is wrong)
Claude Opus 4.8T1
genre: empirical
about Canada: no
confidence: medium

Assesses the content validity of three generic preference-based health-related quality of life instruments for dementia; the object is the measurement instruments that research and evaluation rely on, i.e., a research method and its properties, though a reasonable coder could read this as clinical measurement.

GPT-5.6 (high)OUT
genre: empirical
about Canada: no
confidence: high

The work evaluates health-related quality-of-life instruments for dementia rather than research practice.

Grok 4.5OUT
genre: empirical
about Canada: no
confidence: medium

Psychometric content validity of QoL instruments for dementia patients is clinical measurement work, not metaresearch.

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)0.042
metaresearch head score (Gemma)0.141
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.042
Threshold uncertainty score0.000

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0420.141
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.004
Bibliometrics0.0040.003
Science and technology studies0.0010.002
Scholarly communication0.0020.002
Open science0.0010.003
Research integrity0.0020.002
Insufficient payload (model declined to judge)0.0020.000

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.

Opus teacher head0.951
GPT teacher head0.548
Teacher spread0.403 · 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.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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

Citations63
Published2002
Admission routes1
Has abstractno

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