neuropsychology vs psychology

neuropsychology and psychology both are nouns.

Word	Noun	Adjective	Verb	Adverb
neuropsychology	Yes	No	No	No
psychology	Yes	No	No	No

As nouns, psychology is a hypernym of neuropsychology; that is, psychology is a word with a broader meaning than neuropsychology:

neuropsychology: the branch of psychology that is concerned with the physiological bases of psychological processes
psychology: the science of mental life

Other hypernyms of neuropsychology include psychological science.

neuropsychology (noun)	psychology (noun)
the branch of psychology that is concerned with the physiological bases of psychological processes	the science of mental life