This calculator will compute the intraclass correlation for an analysis of variance (ANOVA) study, given the between-groups mean square, the within-groups mean square, and the number of subjects in each group.

This calculator will compute the Pearson correlation coefficient r for two variables X and Y, given the covariance value between the two variables, and their standard deviations.

This calculator will compute the covariance between two variables X and Y, given the Pearson correlation coefficient for the two variables, and their standard deviations.

This calculator will tell you the significance (both one-tailed and two-tailed probability values) of a Pearson correlation coefficient, given the correlation value r, and the sample size.

This calculator will determine whether two correlation coefficients are significantly different from each other, given the two correlation coefficients and their associated sample sizes. Values returned from the calculator include the probability value and the z-score for the significance test. A probability value of less than 0.05 indicates that the two correlation coefficients are significantly different from each other.

This calculator will tell you the t-value and degrees of freedom associated with a Pearson correlation coefficient, given the correlation value r, and the sample size.