biserial correlation coefficient vs biserial correlation

biserial correlation coefficient and biserial correlation both are nouns.

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

As nouns, biserial correlation coefficient and biserial correlation are synonyms defined as:

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

biserial correlation coefficient (noun)	biserial correlation (noun)
a correlation coefficient in which one variable is many-valued and the other is dichotomous	a correlation coefficient in which one variable is many-valued and the other is dichotomous