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Common pitfalls in statistical analysis: Measures of agreement.

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TLDR
This article looks at statistical measures of agreement for different types of data and discusses the differences between these and those for assessing correlation.
Abstract
Agreement between measurements refers to the degree of concordance between two (or more) sets of measurements. Statistical methods to test agreement are used to assess inter-rater variability or to decide whether one technique for measuring a variable can substitute another. In this article, we look at statistical measures of agreement for different types of data and discuss the differences between these and those for assessing correlation.

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References
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Journal ArticleDOI

Common pitfalls in statistical analysis: Logistic regression.

TL;DR: In this article, a statistical technique to evaluate the relationship between various predictor variables and an outcome which is binary is discussed.
Journal ArticleDOI

Common pitfalls in statistical analysis: The use of correlation techniques

TL;DR: The interpretation of the correlation coefficient is looked at and various situations in which the use of technique of correlation may be inappropriate are examined.
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Accuracy and Reliability of Pallor for Detecting Anaemia: A Hospital-Based Diagnostic Accuracy Study

TL;DR: Clinical assessment of pallor can rule out and modestly rule in severe anaemia and the tongue pallor outperformed other pallor sites and was the best discriminator of anaemia at haemoglobin thresholds and area under the receiver operating characteristic curve.
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Scoring of hand eczema : good reliability of hand eczema extent score

TL;DR: HEES is a reliable tool for both dermatologists and patients to grade the extent of hand eczema, and intra-observer reliability in the dermatologists' and patients' self-assessments was very good.
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Gleason’s Grading of Prostatic Adenocarcinoma: Inter-Observer Variation Among Seven Pathologists at a Tertiary Care Center in Oman

TL;DR: To determine inter-observer variation among 7 pathologists working at a tertiary care center in Oman, a total of 47 consecutive prostatic biopsies were interdependently reviewed by seven pathologists and the results obtained were compared with each other and the original diagnosis.
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