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https://doi.org/10.1093/med/97...

Part of book or chapter of book . 2020 . Peer-reviewed

Data sources: Crossref

https://doi.org/10.1093/med/97...

Part of book or chapter of book . 2010 . Peer-reviewed

Data sources: Crossref

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Research design

descriptionPublicationkeyboard_double_arrow_right Part of book or chapter of book 01 Nov 2010 English Publisher:Oxford University Press (OUP)

Authors: Janet L. Peacock; Philip J. Peacock;

doi: 10.1093/med/9780198743583.003.0002 , 10.1093/med/9780199551286.003.0001

Research design

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Abstract

This chapter describes the main features of the design of interventional and observational studies and the differences and similarities between research and audit. It discusses when a sample size calculation is needed, describes the main principles of the calculations, and outlines the steps involved in preparing a study protocol. Most sections are illustrated with examples and particular attention is given to the statistical issues that arise in designing and appraising research.

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	13
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average

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