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COEFFICIENT OF CORRELATION
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
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)
Example:
what is the correlation between those two variables?
Synonyms:
coefficient of correlation; correlation; correlation coefficient
Classified under:
Nouns denoting cognitive processes and contents
Hypernyms ("coefficient of correlation" is a kind of...):
parametric statistic (any statistic computed by procedures that assume the data were drawn from a particular distribution)
Domain category:
statistics (a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters)
Hyponyms (each of the following is a kind of "coefficient of correlation"):
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)
