correlation coefficient vs tetrachoric correlation coefficient

tetrachoric correlation coefficient vs correlation coefficient

correlation coefficient and tetrachoric correlation coefficient both are nouns.

Word	Noun	Adjective	Verb	Adverb
correlation coefficient	Yes	No	No	No
tetrachoric correlation coefficient	Yes	No	No	No

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

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

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

correlation coefficient (noun)	tetrachoric correlation coefficient (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 computed for two normally distributed variables that are both expressed as a dichotomy

Difference between correlation coefficient and tetrachoric correlation coefficient

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