Significance of the Correlation Coefficient ... The fundamental question: is the difference between what you observe and what you expect given the assumption of the population large enough to be significant -- to reject the assumption?
janda.org/c10/Lectures/topic06/L24-significanceR.htm janda.org/c10/Lectures/topic06/L24-significanceR.htm
Since my correlation 0f .73 is actually quite a bit higher, I conclude that it is not a chance finding and that the correlation is "statistically significant" (given the parameters of the test). I can reject the null hypothesis and accept the alternative...
www.socialresearchmethods.net/kb/statcorr.php
Correlation can also be a misleading average if the relationship varies depending on the value of the independent variable ("lack of homoscedasticity"). And, of course, atheoretical or post-hoc running of many correlations runs the risk that 5% of the coefficients may be found significant by chance alone.
faculty.chass.ncsu.edu/garson/PA765/correl.htm
How to Determine Whether Two Correlation Coefficients are Significant ... In general, due to the fact that the reliability of the correlation coefficient increases with its absolute value, relatively small differences between large correlation coefficients can be significant.
www.statsoft.com/textbook/stbasic.html
Table 4. Statistically significant correlation between chloride concentrations and instantaneous water levels for selected wells in southern Florida ; [Statistically significant if p-value is less than or equal to 0.025]
www.sflorida.er.usgs.gov/ddn_data/project/Table_04.html
RESULTS: A significant negative correlation was observed between FA and T2 signal-intensity change (r = –0.61, P = .00009). A trend of correlation between FA signal intensity and time of onset were found (r = –0.438, P = .025). No significant correlation was found between ADC and FA values (r = –0.302, P = .134).
www.ajnr.org/cgi/content/full/25/5/699
Crime statistics were obtained from the state Department of Justice and the Federal Bureau of Investigation. Correlation statistics were performed. Health care coverage for victims of penetrating trauma was also analyzed.
archsurg.ama-assn.org/cgi/content/abstract/139/12/1350
Analysis of these samples showed a significant correlation between sentinel node metastases and associated DCIS in the primary cancer. The researchers found associated DCIS in 37% of women. A positive SLND was found in 31% of women.
www.docguide.com/dg.nsf/PrintPrint/E62D453BD645E3878525... www.docguide.com/dg.nsf/PrintPrint/E62D453BD645E38785256FE900418F8F
The importance of intersubtype recombination in HIV-1 epidemic has been documented recently, while a significant proportion of the circulating viruses, which have been ... Furthermore, the correlation was higher when the similarity plot was moved for approximately 600 bps towards the 3'-terminus of the genome,
www.aegis.com/conferences/iac/2002/TuPeA4413.html
The logic and computational details of correlation are described in Chapter 3 of Concepts and Applications. ... If the true correlation between X and Y within the general population is rho=0, and if the size of the sample, N, on which an observed value of r is based is equal to or greater than 6, then the quantity;
faculty.vassar.edu/lowry/rsig.html
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