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Sex-different phenotypic correlations: Due to genes or environment?
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Are Genetic Correlations and Environmental Correlations Correlated?
Nature, 1970CORRELATIONS between different characters measured on individuals of a population have both genetic and environmental causes. In an extensive genetic analysis of the open-field behaviour of mice, which is a widely used index of “emotionality”, we have found that genetic and corresponding environmental patterns of association among pairs of characters ...
Hegmann, J P, Fries, J C
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The ‘correlates’ in neural correlates of consciousness
Neuroscience & Biobehavioral Reviews, 2012In the search for neural correlates of consciousness (NCC), the concept of 'consciousness' remains problematic. We suggest that not only the 'consciousness' in neural correlates of consciousness is a confused term, but 'correlates' is as well. When brain events are found to covary with conscious experience, these brain events can be the neural ...
de Graaf, T.A., Hsieh, P.J., Sack, A.T.
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Comparing correlated correlation coefficients.
Psychological Bulletin, 1992The purpose of this article is to provide simple but accurate methods for comparing correlation coefficients between a dependent variable and a set of independent variables. The methods are simple extensions of Dunn & Clark's (1969) work using the Fisher z transformation and include a test and confidence interval for comparing two correlated ...
Rosenthal, Robert +2 more
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Comparing correlated but nonoverlapping correlations.
Psychological Methods, 1996A common situation in psychological research involves the comparison of two correlations on the same sample of subjects, in which the correlations are nonoverlapping in the sense of having a variable in common (e.g., ru and r2) rather than r,3 and r,2). The classic statistic for this situation is the Pearson- Filon statistic, (PF) which is based on the
Rosenthal, Robert +2 more
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On the Correlation Between Correlations
Biometrika, 1975Specific tests for the equality of two dependent interclass correlations, estimated from a multivariate sample, have been examined in some detail by Dunn & Clark (1969, 1971). In this paper I wish to consider the dependencies among correlation coefficients in more generality, whether interclass or intraclass, and hence to suggest appropriate large ...
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An analysis of correlation matrices: Equal correlations
Biometrika, 1984In terms of the large-sample joint distribution of Z, the \(2^{-1}p(p- 1)\) Fisher z-transforms of the elements in a \(p\times p\) correlation matrix, the authors prove that the variance matrix of Z has just three projector matrices in its spectral decomposition under the hypothesis of equal population correlations.
Brien, C. J. +3 more
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Comparison of correlated correlations
Statistics in Medicine, 1989AbstractWe consider a problem where k highly correlated variables are available, each being a candidate for predicting a dependent variable. Only one of the k variables can be chosen as a predictor and the question is whether there are significant differences in the quality of the predictors.
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Correlation of the ranges of correlated samples
Biometrika, 1967Knowledge of the correlation coefficient between the ranges of two correlated samples is required in the analysis of experimental designs by short-cut techniques (Hartley, 1950; David, 1951; Kurtz et al. 1965a, b) and in industrial quality control when the machine concerned is of the multi-spindle variety (Moore, 1958).
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