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Choice of variables for correlation analysis when measurement error is presentAuthor(s): F. Thomas Lloyd
Source: Proceedings Soil Moisture-Site Productivity Symposium USDA Forest Service Southeastern Area S&PF
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
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DescriptionAlthough correlation analysis is widely used, it is not well known that using variables measured with error causes the correlation coefficient to be underestimated (or biased toward zero). Knowledge of the form of this bias will help in the selection of variables to be used in studying soil and site productivity relationships . An example using site index shows that bias can be appreciable.
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CitationLloyd, F. Thomas. 1978. Choice of variables for correlation analysis when measurement error is present. In: Proceedings Soil Moisture-Site Productivity Symposium USDA Forest Service Southeastern Area S&PF; 1978; Atlanata, GA: 292-295.
KeywordsBias, site index, variance ratios, Pinus taeda
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