Questions tagged [validity-coefficient]

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What is reliability? How it is related to correlation coefficient?

We can compute real or population correlation(rho) by square-root of 1 minus R-squared.Is this a correct interpretation? Does population correlation mean a real correlation measured as square-root of 1 - R_squared? Here, Reliability seems to reflect…
Subhash C. Davar
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How do I differentiate validity-coefficient from alpha-coefficient for a significance test?

Two terms are in vogue for a longtime.Alpha_coefficient is used for denoting significance. And validity coefficient denotes measurement error by two or more raters or evaluators of an object or human-being. What are the distinctions between them? …