CAFAA: Compound Attenuation Factor for Meta-Analytic Artifact...

Description Usage Arguments Details Value Note Author(s) References See Also Examples

Description

The compound attenuation factor is computed as the product of the mean for each artifact distribution (square root of artifact) when correcting for attenuation in a correlation coefficient.

Usage

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CAFAA(x)

Arguments

x

A matrix or data.frame with columns Rxx, Ryy, and u: see EnterMeta

Details

The compound attenuation factor is computed as the product of mean(a)*mean(b)*mean(c) where
a = sqrt(Rxx) and is computed with the function aRxx
b = sqrt(Ryy) and is computed with the function bRyy
c = sqrt((1-u^2)*rbar^2+u^2) and is computed with the function cRR

Value

A numeric value representing the compound attenuation factor

Note

This value is used in the correction for artifacts of a correlation coefficient

Author(s)

Thomas D. Fletcher tom.fletcher.mp7e@statefarm.com

References

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.

See Also

rhoCA, aRxx, bRyy, cRR

Examples

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#From Arthur et al
data(ABHt32)
CAFAA(ABHt32)
rhoCA(ABHt32)

# From Hunter et al
data(HSJt35)
CAFAA(HSJt35)
rhoCA(HSJt35)

psychometric documentation built on May 2, 2019, 9:38 a.m.