The compound variance factor is computed by summing the individual squared coefficients of variation for each artifact when correcting for attenuation in a correlation coefficient
A matrix or data.frame with columns representing artifacts (Rxx, Ryy, u):
The CVF is equal to scv(a) + scv(b) + scv(c), where scv is the squared coefficient of variation. The letters a, b, c represent artifacts reliability in predictor, reliability in criterion, and restriction of range respectively. The scv is computed as the variance in the artifact divided by the square of the average for the artifact.
a numeric value representing the compound variance factor
Thomas D. Fletcher firstname.lastname@example.org
Arthur, Jr., W., Bennett, Jr., W., and Huffcutt, A. I. (2001) Conducting Meta-analysis using SAS. Mahwah, NJ: Erlbaum.
Hunter, J.E. and Schmidt, F.L. (2004). Methods of meta-analysis: Correcting error and bias in research findings (2nd ed.). Thousand Oaks: Sage Publications.
Hunter, J.E., Schmidt, F.L., and Jackson, G.B. (1982). Meta-analysis: Cumulating research findings across studies. Beverly Hills: Sage Publications.
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Loading required package: multilevel Loading required package: nlme Loading required package: MASS  0.01458953  0.01408521
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