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Critical values for Lawshe's content validity ratio: revisiting the original methods of calculation
Ayre, Colin A. Scally, Andy J.
Ayre, Colin A.
Scally, Andy J.
Publication Date
2014-01
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The final, definitive version of this paper has been published in Measurement and Evaluation in Counseling and Development, 47/1 by SAGE Publications Ltd, All rights reserved. © 2014 SAGE Publications Ltd.
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openAccess
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Abstract
The content validity ratio originally proposed by Lawshe is widely used to quantify content validity and yet methods used to calculate the original critical values were never reported. Methods for original calculation of critical values are suggested along with tables of exact binomial probabilities.
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Accepted manuscript
Citation
Ayre C and Scally AJ (2014) Critical values for Lawshe’s content validity ratio: revisiting the original methods of calculation. Measurement and Evaluation in Counseling and Development. 47(1): 79-86.
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