Resources > Diagnostic Instruments

General

The BMJ's articles on Clinical Research and Diagnostic Tests

Diagnosis
Part of the Michigan State University's online Evidence-Based Medicine course.

Interpreting Diagnostic Tests
An on-line textbook by Thomas G. Tape, MD, University of Nebraska Medical Center.

Likelihood ratios, odds ratios, risk ratios, and all that...
A presentation by Atle Klovning of the University of Bergen in Norway.

How good is that test? and How Good is that Test? II
Reports on quality standards that should be met by reports of diagnostic procedures, from Bandolier.


Discussion Groups

SRDT-Systematic Reviews of Diagnostic Tests
The Cochrane Collaboration's Screening and Diagnostic Tests Methods Group has an email list to serve the members of the group.


Software

Analyse-it
Analyse-it Clinical Laboratory method evaluation tools.  These tools can be used evaluating a method or instrument's analytical accuracy and imprecision and it's diagnostic performance. A free demo version is available for downloading

Accumetric Test Performance Analysis
A software for the statistical analysis of diagnostic test or rating scale performance.  Click on Download for a demo version.


Sensitivity and Specificity

Sensitivity and Specificity
Practical examples using sensitivity, specificity, gold (reference) standard, positive predictive value, and negative predictive value. From the Medical University of South Carolina's Introduction to Clinical Reasoning.

SpPins and SnNouts
From the Centre for Evidence-Based Medicine (CEBM). Includes an interactive calculator for working out Sensitivity and Specificity (using Shockwave Player).

Predictive Value Theory
From the University of Iowa's Laboratory Handbook.


Receiver Operating Characteristics (ROC) Curves

Introduction to ROC Curves
From the University of Nebraska's on-line textbook.

'Do you have a simple explanation about ROC curves?'
A question for Professor Mean.



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