How should I deal with outliers when doing correlations?
Rank-based and other correlations (percentage bend) which are robust to non-Normal data
How do I correlate change in score with the score at baseline?
How do I measure agreement to see if two measures are measuring the same thing (Bland and Altman plots)?
Can I do a correlation between two variables where one variable is less than or equal to the other?
How do I produce nonparametric Spearman partial correlations using SPSS?
What is Collinearity in multiple regression, and what do I do about it?
How do I compare a pair of correlations?
How do I obtain an average correlation?
How do I work out reliability for three or more items? (Cronbach's alpha, composite reliability and Raykov's rho)
What thresholds should I use for convergent validity?
How do I test if a correlation is zero and obtain its confidence interval?
How many degrees of freedom are associated with a test of whether a zero-order or multiple correlation equals zero?
How do I estimate a pooled correlation using multiple scores from a set of subjects?
How do I adjust p-values to test if more than one correlation is zero?
How do I obtain a 95% confidence interval for a correlation (or slope in a simple regression) in SPSS?
How do I adjust a correlation for group differences (using partial and semi-partial correlations)?
Power calculations for testing if correlations equal zero
What are polychoric correlations and how do I compute them and use in SPSS?
What are intraclass correlations and how do I use them?
How do I compute consistency across subjects using an intraclass correlation?
A note on correcting for restriction of ranges which underestimate Pearson correlations
What is the relationship between significance tests of regression coefficients and of correlation coefficients?
None: FAQ/corrsFAQ (last edited 2018-03-22 15:07:24 by PeterWatson)