CORRELATION COEFFICIENT

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 Dictionary entry overview: What does correlation coefficient mean? 

• CORRELATION COEFFICIENT (noun)
  The noun CORRELATION COEFFICIENT has 1 sense:

1. 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)

  Familiarity information: CORRELATION COEFFICIENT used as a noun is very rare.

 Dictionary entry details 

• CORRELATION COEFFICIENT (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)

Classified under:

Nouns denoting cognitive processes and contents

Synonyms:

coefficient of correlation; correlation; correlation coefficient

Context example:

what is the correlation between those two variables?

Hypernyms ("correlation coefficient" 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 "correlation coefficient"):

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)

 Context examples 

The research team used a well-known correlation formula (Pearson correlation coefficient) to determine the relationship between self-reported mood and physical performance.

(Mental, Not Physical, Fatigue Affects Seniors' Walking Ability, The Titi Tudorancea Bulletin)

The correlation coefficients between variable and factors.

(Component Load, NCI Thesaurus)

Using a statistical measurement called the intraclass correlation coefficient (ICC), which measures how well individuals within a group resemble each other (with a value of 1 marking perfect agreement), the researchers found that identical twins had an ICC of 0.91 for eye-looking and 0.86 for mouth-looking.

(Children’s visual engagement is heritable and altered in autism, National Institutes of Health)