genetic psychology vs child psychology

genetic psychology and child psychology both are nouns.

Word	Noun	Adjective	Verb	Adverb
genetic psychology	Yes	No	No	No
child psychology	Yes	No	No	No

As nouns, genetic psychology and child psychology are synonyms defined as:

genetic psychology and child psychology: the branch of psychology that studies the social and mental development of children

Other synonyms of genetic psychology include developmental psychology.

genetic psychology (noun)	child psychology (noun)
the branch of psychology that studies the social and mental development of children	the branch of psychology that studies the social and mental development of children