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In psychometrics, the Kuder–Richardson Formula 20 (KR-20) first published in 1937 is a measure of internal consistency reliability for measures with dichotomous ... - read more

Describes how to calculate the Kuder and Richardson Formula 20 (KR20) and Kuder and Richardson ... with KR 20 formula ... between Kuder Richardson 21 and 20 ... - read more

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