Correction for attenuation is a statistical procedure, due to Spearman (1904), to "rid a correlation coefficient from the weakening effect of measurement error" (Jensen, 1998), a phenomenon also known as regression dilution. In measurement and statistics, it is also called disattenuation. The correlation between two sets of parameters or measurements is estimated in a manner that accounts for measurement error contained within the estimates of those parameters.
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Other articles related to "correction for attenuation, for attenuation":
... reliability for each variable, and, the correlation between and corrected for attenuation is ... The correction for attenuation tells you what the correlation would be if you could measure X and Y with perfect reliability ...
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