Results 221 to 230 of about 310,979 (266)

Validity Coefficients and Correlated Errors in Test Theory

The Journal of Experimental Education, 1977
Simple formulas for test validity in predictor-criterion test situations are derived from the expected-value concept of true score without assuming that error scores on distinct tests are uncorrelated. The formulas apply when scores are not experimentally independent and reduce to the usual results of the classical model if the correlation between ...
Donald W. Zimmerman, Richard H. Williams
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Three Coefficients for Analyzing the Reliability and Validity of Ratings

Educational and Psychological Measurement, 1985
Three numerical coefficients (V, R, and H) for analyzing the validity and reliability of ratings are described. Each coefficient, which ranges in value from 0 to 1, is computed as the ratio of an obtained to a maximum sum of differences in ratings, or as 1 minus that ratio. Computer programs for calculating the coefficients, their associated individual
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Cumulative STF coefficients evaluation and validation

Metascience in Aerospace
<p>Decomposition of geophysical functions in ranks on degrees of components of a single position vector with coefficients in the form of the indexes of tensors, symmetric and traceless on any couple (symmetric and trace free [STF] tensors or deviators), is applied along with decomposition on surface harmonics (scalar, vector, and tensor).
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Assay Validation Using the Concordance Correlation Coefficient

Biometrics, 1992
A new reproducibility index, called the concordance correlation coefficient, has been proposed (Lin, 1989, Biometrics 45, 255-268) to evaluate the reproducibility of an assay, method, or instrument. This index includes measurements of precision and accuracy. Based on certain criteria about the allowable losses in precision and accuracy, one can compute
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REGIONS OF VALIDITY OF VARIOUS ABSORPTION-COEFFICIENT APPROXIMATIONS

Journal of Meteorology, 1953
Abstract Elsasser's integral for the absorption by a periodic line pattern is evaluated and used to examine the validity of various approximations concerning the absorption coefficient. It is found that composite absorption curves, obtained by ignoring overlapping for small optical paths and ignoring the pressure-dependent term in the denominator of ...
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A Nomograph for Estimating the Validity Coefficient of a Lengthened Test

The Journal of Experimental Education, 1937
b) Pivot the isopleth at the point 2.3 on the X scale until it meets the proper value, .60, on the V12 scale. The isopleth intersects the Vn scale at .637. 2. To solve for F12, given r1i = .S$, Fn*= .637,^ = 3. a) Repeat. b) Pivot the straightedge where it cuts the X scale until it meets the proper value, .637, on scale Vn.
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Collapsing Variables and Validity Coefficients

American Sociological Review, 1983
Kenneth A. Bollen, Kenny H. Barb
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The Validity of Family Coefficients

The Journal of Nutrition, 1931
E.P. Cathcart, A.M.T. Murray
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An Updated Guideline for Assessing Discriminant Validity

Organizational Research Methods, 2022
Mikko Ronkko, Eunseong Cho
exaly  

Validity Coefficients and Test-Retest Reliability

2021
Keith S. Cox, Zealure C. Holcomb
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