correlational vs correlation

correlational is not a noun while correlation is a noun.

Word	Noun	Adjective	Verb	Adverb
correlational	No	Yes	No	No
correlation	Yes	No	No	No

correlational (noun)	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 statistical relation between two or more variables such that systematic changes in the value of one variable are accompanied by systematic changes in the other
	a reciprocal relation between two or more things

correlational (adjective)	correlation (adjective)
relating to or employing correlation