psychometrika vs psychometry

psychometrika and psychometry both are nouns.

Word	Noun	Adjective	Verb	Adverb
psychometrika	Yes	No	No	No
psychometry	Yes	No	No	No

As nouns, psychometrika and psychometry are synonyms defined as:

psychometrika and psychometry: any branch of psychology concerned with psychological measurements

Other synonyms of psychometrika include psychometrics.

psychometrika (noun)	psychometry (noun)
any branch of psychology concerned with psychological measurements	any branch of psychology concerned with psychological measurements