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ufs (version 0.5.12)

disattenuate.d: Disattenuate a Cohen's d estimate for unreliability in the continuous variable

Description

Measurement error (i.e. the complement of reliability) results in a downward bias of observed effect sizes. This attenuation can be reversed by disattenuation.

Usage

disattenuate.d(d, reliability)

Value

The disattenuated value of Cohen's d

Arguments

d

The (attenuated) value of Cohen's d (i.e. the value as observed in the sample, and therefore attenuated (decreased) by measurement error in the continuous variable).

reliability

The reliability of the measurements of the continuous variable

Author

Gjalt-Jorn Peters & Stefan Gruijters

References

Bobko, P., Roth, P. L., & Bobko, C. (2001). Correcting the Effect Size of d for Range Restriction and Unreliability. Organizational Research Methods, 4(1), 46–61. tools:::Rd_expr_doi("10.1177/109442810141003")

Examples

Run this code
disattenuate.d(.5, .8);

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