coefficient of correlation vs split-half correlation

split-half correlation vs coefficient of correlation

coefficient of correlation and split-half correlation both are nouns.

Word	Noun	Adjective	Verb	Adverb
coefficient of correlation	Yes	No	No	No
split-half correlation	Yes	No	No	No

As nouns, split-half correlation is a hyponym of coefficient of correlation; that is, split-half correlation is a word with a more specific, narrower meaning than coefficient of correlation:

coefficient of correlation: 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)
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

Other hyponyms of coefficient of correlation include Pearson product-moment correlation coefficient, product-moment correlation coefficient, multiple correlation coefficient, biserial correlation, biserial correlation coefficient, chance-half correlation, tetrachoric correlation, tetrachoric correlation coefficient.

coefficient of correlation (noun)	split-half correlation (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)	a correlation coefficient calculated between scores on two halves of a test; taken as an indication of the reliability of the test

Difference between coefficient of correlation and split-half correlation

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