correlation coefficient

/ˈkɔrəˌleɪʃən ˈkoʊəˌfɪʃənt/

Other forms: correlation coefficients

Definitions of correlation coefficient

1. noun

   a statistic representing how closely two variables co-vary; it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation)
   synonyms: coefficient of correlation, correlation

   types:

   Pearson product-moment correlation coefficient, product-moment correlation coefficient

   the most commonly used method of computing a correlation coefficient between variables that are linearly related

   multiple correlation coefficient

   an estimate of the combined influence of two or more variables on the observed (dependent) variable

   biserial correlation, biserial correlation coefficient

   a correlation coefficient in which one variable is many-valued and the other is dichotomous

   chance-half correlation, split-half correlation

   a correlation coefficient calculated between scores on two halves of a test; taken as an indication of the reliability of the test

   tetrachoric correlation, tetrachoric correlation coefficient

   a correlation coefficient computed for two normally distributed variables that are both expressed as a dichotomy

   type of:

   parametric statistic

   any statistic computed by procedures that assume the data were drawn from a particular distribution