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The Logit Working Papers present a structured interrogation of contemporary health technology
assessment (HTA) knowledge bases, focusing on a single question: do current HTA practices
meet the axioms required for measurement? Using large language models, each paper examines a
defined corpus of published literature, guidelines, and institutional frameworks for agencies,
journals, and academic programs. A fixed 24-item diagnostic instrument, derived from the
principles of representational measurement, is applied to determine whether the conditions
required for quantitative claims are recognized or violated. The results are expressed as
categorical endorsement probabilities and normalized logits, providing a consistent and
reproducible profile of how measurement is represented in practice.
The findings are unambiguous. Across interrogations, a consistent pattern of measurement
inversion is observed: numerical constructions are treated as measures without demonstration
that the underlying attributes and scales satisfy the conditions required for measurement. This is
not a matter of methodological variation, but a structural feature of HTA. Where measurement is
not established, arithmetic operations lack interpretive meaning, and claims cannot be expressed
in a form that supports empirical falsification. The consequence is that current HTA frameworks
cannot support the evolution of objective knowledge in the assessment of therapy impact.
The purpose of the Logit Working Papers is therefore not descriptive, but corrective. By
establishing a reproducible baseline of measurement failure, the series makes clear that there is
no intermediate position; this is shown conclusively in a recent paper:
Either HTA aligns with the axioms of representational measurement, recognizing the constraint to admissible ratio scales for manifest and latent attributes or it continues to rely on numerical constructions that cannot support quantitative claims only numerical storytelling. The transition is not optional. It is
the necessary condition for restoring HTA as a framework capable of generating evaluable,
testable, and scientifically credible claims.
ORGANIZATIONS
PSYCHOMETRCS IS NOT MEASUREMENT
THE GLOBAL HEALTH TECHNOLOGY ASSESSMENT MEMEPLEX OF MEASUREMENT FAILURE
EUROPEAN UNION: EUROPEAN UNION: THE EU ORDAINS FALSE MEASUREMENT AS THE BASIS
FOR MEMBER HEALTH TECHNOLOGY ASSESSMENT WITH EUNetHTA AND EU HTA
WORLD HEALTH ORGANIZATION
JOURNALS
UNITED STATES: PHARMACOECONOMICS AND THE ABSENCE OF MEASUREMENT
UNITED STATES: VALUE IN HEALTH AND THE ABSENCE OF MEASUREMENT
AUSTRALIA
AUSTRALIA: WHAT HAPPENS IF NOTHING CHANGES? QUESTIONS FOR THE FUTURE OF HEALTH TECHNOLOGY ASSESSMENT
AUSTRALIA: A NATIONAL CONSENSUS ON THE ABSENCE OF MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT
AUSTRALIA: PHARMACEUTICAL BENEFITS ADVISORY COMMITTEE (PBAC) – DECISIONS WITHOUT MEASUREMENT
AUSTRALIA: DECONSTRUCTING THE EPISTEMIC KNOWLEDGE BASE OF THE AUSTRALIAN AQoL
AUSTRALIA: THE GLOBAL HEALTH TECHNOLOGY ASSESSMENT MEMEPLEX OF MEASUREMENT FAILURE
AUSTRALIA: PSYCHOMETRICS IS NOT MEASUREMENT
RESEARCH CENTERS
AUSTRIA
AUSTRIA: NATIONAL DENIAL OF REPRESENTATIONAL MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT
BELGIUM
BELGIUM: THE HEALTH CARE KNOWLEDGE CENTER AND MEASUREMENT AS NONSENSE ON STILTS
CANADA
CANADA: THE GLOBAL HEALTH TECHNOLOGY ASSESSMENT MEMEPLEX OF MEASUREMENT FAILURE
CANADA: PSYCHOMETRICS IS NOT MEASUREMENT
CANADA: NATIONAL ENDORSEMENT OF MEASUREMENT FAILURE IN HEALTH TECHNOLOGY ASSESSMENT
CANADA: ACADEMIC RESEARCH AND THE ENDORSEMENT OF MEASUREMENT FAILURE IN HEALTH TECHNOLOGY ASSESSMENT
CANADA: CADTH/CDA AND THE ENDORSEMENT OF MEASUREMENT FAILURE
CANADA: QUEBEC AND THE REPRODUCTION OF MEASUREMENT FAILURE IN HEALTH TECHNOLOGY ASSESSMENT
CANADA: HEALTH TECHNOLOGY ASSESSMENT INTERNATIONAL (HTAi) AND THE COMMITMENT TO FALSE MEASUREMENT
CANADA: DECONSTRUCTING THE EPISTEMIC KNOWLEDGE BASE OF THE HUI INSTRUMENTS
CANADA JOURNALS
CANADA: DECONSTRUCTING THE EPISTEMIC KNOWLEDGE BASE OF THE
CANADIAN JOURNAL OF HEALTH TECHNOLOGIES
RESEARCH CENTERS
CANADA: THE ABSENCE OF REPRESENTATIONAL MEASUREMENT AND THE INSTITUTE OF HEALTH ECONOMICS (IHE)
CZECH REPUBLIC
CZECH REPUBLIC: THE NATIONAL ACCEPTANCE OF FALSE MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT
CZECH REPUBLIC: THE APPLICATION OF FALSE MEASUREMENT BY THE STATE INSTITUTE FOR DRUG CONTROL
DENMARK
DENMARK: NATIONAL REJECTION OF REPRESENTATIONAL MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT
DENMARK: OPERATIONALIZING NONSENSE ON QALY STILTS – THE DANISH MEDICINES COUNCIL
DENMARK: OPERATIONALIZING NONSENSE ON QALY STILTS – THE DANISH MEDICINES AGENCY
ESTONIA
ESTONIA: THE NATIONAL ACCEPTANCE OF FALSE MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT
EUROPEAN UNION
EUROPE: THE GLOBAL HEALTH TECHNOLOGY ASSESSMENT MEMEPLEX OF MEASUREMENT FAILURE
EUROPE: PSYCHOMETRICS IS NOT MEASUREMENT
EUROPEAN JOURNAL OF HEALTH ECONOMICS
EUROPEAN JOURNAL OF HEALTH ECONOMICS: INSTITUTIONALIZING FALSE MEASUREMENT
FINLAND
FINLAND: NATIONAL ENDORSEMENT OF MEASUREMENT FAILURE IN HEALTH TECHNOLOGY ASSESSMENT
FINLAND: FINCCHTA ENDORSEMENT OF MEASUREMENT FAILURE IN HEALTH TECHNOLOGY ASSESSMENT
FINLAND: THE EPISTEMIC FAILURE OF THE FINNISH 15D INSTRUMENT
FRANCE
FRANCE: NATIONAL ENDORSEMENT OF MEASUREMENT FAILURE IN HEALTH TECHNOLOGY ASSESSMENT
GERMANY
GERMANY: FROM MEASUREMENT INVERSION TO ADMISSIBLE CLAIMS IN THERAPY IMPACT ASSESSMENT
GERMANY: NATIONAL ENDORSEMENT OF MEASUREMENT FAILURE IN HEALTH TECHNOLOGY ASSESSMENT
GERMANY: CONSTRAINED INSTITUTIONAL ENDORSEMENT OF MEASUREMENT FAILURE BY IQWiG/G-BA
GERMANY: THE HAMBURG CENTRE FOR HEALTH ECONOMICS (HCHE) AND THE ENDORSEMENT OF MEASUREMENT INVERSION
ITALY
ITALY: FROM MEASUREMENT INVERSION TO ADMISSIBLE CLAIMS IN THERAPY IMPACT ASSESSMENT
ITALY: THE CERGAS HTA RESEARCH CENTRE AT BOCCONI UNIVERSITY MILAN ENDORSES FALSE MEASUREMENT
ITALY: MEASUREMENT FAILURE IN NATIONAL HEALTH TECHNOLOGY ASSESSMENT COORDINATION
ITALY: MEASUREMENT FAILURE IN REGIONAL HEALTH TECHNOLOGY ASSESSMENT IMPLEMENTATION
IRELAND
ISRAEL
ISRAEL: NATIONAL INSTITUTIONALIZATION OF FALSE MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT
LATVIA
LATVIA: THE NATIONAL ACCEPTANCE OF FALSE MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT
LITHUANIA
LITHUANIA: THE NATIONAL ACCEPTANCE OF FALSE MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT
NETHERLANDS
NETHERLANDS; THE DUTCH CONTRIBUTION TO NONSENSE ON STILTS IN HEALTH TECHNOLOGY ASSESSMENT
NETHERLANDS: MEASUREMENT FAILURE IN NATIONAL HEALTH TECHNOLOGY ASSESSMENT GUIDELINES
NETHERLANDS: MEASUREMENT FAILURE IN DUTCH ACADEMIC RESEARCH CENTERS FOR HEALTH TECHNOLOGY ASSESSMENT
NEW ZEALAND
NEW ZEALAND: NATIONAL ENDORSEMENT OF MEASUREMENT ABSENCE IN HEALTH TECHNOLOGY ASSESSMENT
NEW ZEALAND: THE ABSENCE OF MEASUREMENT IN ACADEMIC RESEARCH GROUPS FOR HEALTH TECHNOLOGY ASSESSMENT
NEW ZEALAND: PHARMAC ENDORSES FALSE MEASUREMENT FOR HEALTH TECHNOLOGY ASSESSMENT
NORWAY
NORWAY: NATIONAL DENIAL OF REPRESENTATIONAL MEASUREMENT
POLAND
POLAND: NATIONAL ENDORSEMENT OF MEASUREMENT FAILURE IN HEALTH TECHNOLOGY ASSESSMENT
POLAND: AOTMiT ENDORSEMENT OF MEASUREMENT FAILURE IN HEALTH TECHNOLOGY ASSESSMENT
PORTUGAL
PORTUGAL: NATIONAL DIFFUSION OF FALSE MEASUREMENT IN HEATH TECHNOLOGY KNOWLEDGE BASE
PORTUGAL: INFARMED AND THE OPERATIONALIZING OF FALSE MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT
SINGAPORE
SINGAPORE: THE ABSENCE OF REPRESENTATIONAL MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT
SPAIN
SPAIN: FROM MEASUREMENT INVERSION TO ADMISSIBLE CLAIMS IN THERAPY IMPACT ASSESSMENT
SPAIN: THE REDETS NATIONAL NETWORK ENDORSES FALSE MEASUREMENT
SPAIN: THE AQuAS CATALAN GOVERNMENT AGENCY ENDORSES FALSE MEASUREMENT FOR HTA
SPAIN: REGIONAL VARIANTS OF MEASUREMENT FAILURE IN HEALTH TECHNOLOGY ASSESSMENT
SWEDEN
SWEDEN: NATIONAL ENDORSEMENT OF MEASUREMENT FAILURE
SWEDEN: TLV REJECTS REPRESENTATIONAL MEASUREMENT
SWITZERLAND
SWITZERLAND: NATIONAL ACCEPTANCE OF FALSE MEASUREMENT IN HEALTH TECHNOLOGY ASSESSMENT