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What makes a measurement instrument valid and reliable?
Scholtes VA, Terwee CB, Poolman RW. Scholtes VA, et al. Among authors: poolman rw. Injury. 2011 Mar;42(3):236-40. doi: 10.1016/j.injury.2010.11.042. Epub 2010 Dec 9. Injury. 2011. PMID: 21145544
Reliability of maximal isometric knee strength testing with modified hand-held dynamometry in patients awaiting total knee arthroplasty: useful in research and individual patient settings? A reliability study.
Koblbauer IF, Lambrecht Y, van der Hulst ML, Neeter C, Engelbert RH, Poolman RW, Scholtes VA. Koblbauer IF, et al. Among authors: poolman rw. BMC Musculoskelet Disord. 2011 Oct 31;12:249. doi: 10.1186/1471-2474-12-249. BMC Musculoskelet Disord. 2011. PMID: 22040119 Free PMC article. Clinical Trial.
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