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Akufo and ibarapa.
Beckett Ah,Rowland M,Paul Turner +2 more
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This article is published in The Lancet.The article was published on 1965-02-06 and is currently open access. It has received 17468 citations till now.read more
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A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research
Terry K. Koo,Mae Y. Li +1 more
TL;DR: A practical guideline for clinical researchers to choose the correct form of ICC is provided and the best practice of reporting ICC parameters in scientific publications is suggested.
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The Oswestry Disability Index.
Jeremy Fairbank,Paul Pynsent +1 more
TL;DR: The ODI remains a valid and vigorous measure and has been a worthwhile outcome measure, and the process of using the ODI is reviewed and should be the subject of further research.
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Worldwide time trends in the prevalence of symptoms of asthma, allergic rhinoconjunctivitis, and eczema in childhood: ISAAC Phases One and Three repeat multicountry cross-sectional surveys
M. Innes Asher,Stephen Montefort,Bengt Björkstén,Christopher K.W. Lai,David P. Strachan,Stephan K. Weiland,Hywel C Williams +6 more
TL;DR: The rise in prevalence of symptoms in many centres is concerning, but the absence of increases in prevalence in asthma symptoms for centres with existing high prevalence in the older age-group is reassuring.
Journal ArticleDOI
The Kappa Statistic in Reliability Studies: Use, Interpretation, and Sample Size Requirements
Julius Sim,Chris Wright +1 more
TL;DR: The issue of statistical testing of kappa is considered, including the use of confidence intervals, and appropriate sample sizes for reliability studies using kappa are tabulated.
Journal ArticleDOI
The COSMIN checklist for assessing the methodological quality of studies on measurement properties of health status measurement instruments: an international Delphi study
Lidwine B. Mokkink,Caroline B. Terwee,Donald L. Patrick,Jordi Alonso,Paul W. Stratford,Dirk L. Knol,Lex M. Bouter,Lex M. Bouter,Henrica C.W. de Vet +8 more
TL;DR: The resulting COSMIN checklist could be useful when selecting a measurement instrument, peer-reviewing a manuscript, designing or reporting a study on measurement properties, or for educational purposes.