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34 resources
Guides
Calibration, traceability and bias
Distinguish calibration, traceability, bias and the scope of their evidence.
Guides
Document, report and review uncertainty
Understand what an uncertainty record/report needs to explain and how it is maintained.
Guides
From measurement model to uncertainty
Understand how a measurement model connects inputs and an uncertainty result.
Guides
Choose an uncertainty approach
Distinguish the uncertainty approaches and choose evidence relevant to a question.
Guides
External quality assessment (EQA): interpreting targets, peer groups and scores
Interpret target, comparison-group and material context without overextending the report.
Guides
Internal quality control (IQC): interpreting signals and responding to change
Explain control signals, material limits and investigation questions.
Guides
Measurement uncertainty (MU): start with the result
Explain what uncertainty describes and identify the result, purpose and scope.
Concept explanations
Concepts explained
Definitions and connections between laboratory concepts, with links to supporting sources.
Guides
SD, CV, standard error and confidence intervals
Distinguish SD, CV, standard error and confidence intervals.
Guides
Build a defensible top-down estimate
Understand the existing top-down approach and its evidence/scope limits.
Calculators and tools
One-sample t-test calculator for laboratory data
Inspect a one-sample t calculation and its assumptions/interpretation.
Calculators and tools
Probability distribution viewer for laboratory teaching
Explore probability distributions and explain what the illustration does and does not establish.
Guides
Risk-based laboratory quality: an introduction
Understand harm, pathways, controls and the limits of a risk score.
Email courses
Risk-based approaches: what could go wrong? — free email course
Explain possible harm, controls and residual risk in a laboratory pathway.
Email courses
Metrological traceability: what is your result traceable to? — free email course
Explain calibration chains, assigned values and the limits of traceability claims.
Email courses
EQA: what does your EQA report really tell you? — free email course
Understand target assignment, peers, scores and material limitations.
Email courses
IQC: what is your QC result telling you? — free email course
Recognise the questions to ask about control charts, signals and material.
Guides
Analytical performance specifications (APS) in laboratory medicine
Understand why an APS must match intended use and the characteristic assessed.
Email courses
APS: what does good enough mean? — free email course
Build introductory understanding of fitness for use and performance requirements.
Email courses
Measurement uncertainty: explain one result — free email course
Explain an uncertainty estimate and complete the established one-page introductory note.
Guides
Method verification and validation in medical laboratories
Distinguish verification from validation and understand the planning questions.
Calculators and tools
APTT TR Viewer
Use the existing specialist APTT TR viewer within its stated scope.
Guides
Numerical uncertainty and categorical agreement
Distinguish numerical uncertainty from categorical agreement.
Guides
Method comparison: agreement, differences and clinical acceptability
Distinguish agreement, correlation, differences and clinical acceptability.
Articles
Choosing control materials for the question
Understand why control-material choice must match the question.
Articles
RMS, RMSE, SD and RSS: four different questions
Distinguish RMS, RMSE, SD and RSS by the question each answers.
Articles
Absolute and relative uncertainty across the range
Distinguish absolute and relative uncertainty across concentration.
Articles
Build an evidence map before an uncertainty budget
Map the evidence available before choosing an uncertainty budget.
Articles
Uncertainty across instruments and sites
Understand why instrument/site/time scope matters to an estimate.
Articles
A difference, a reference interval and a clinical decision
Distinguish a numerical difference, a reference interval and a clinical decision.
Downloads
Measurement uncertainty preparation pack — free download
Use the existing preparation or review form within its stated scope.
Downloads
IQC signal review pack — free download
Use the existing preparation or review form within its stated scope.
Downloads
EQA result review pack — free download
Use the existing preparation or review form within its stated scope.
Downloads
Verification preparation pack — free download
Use the existing preparation or review form within its stated scope.
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