verificationism
Noun
Meaning
verificationism (usually uncountable, plural verificationisms)
English Wikipedia has an article on:verificationismWikipedia
(philosophy) Belief in the verification principle.
Examples
For a classic survey of other versions of verificationism, see Carl G Hempel, "Problems and changes in the empiricist criterion of meaning", Revue Internationale de Philosophie, 1950;41:41-63.
In verificationism, only the verifiable was scientific, and thus meaningful (or cognitively meaningful), whereas the unverifiable, being unscientific, was meaningless "pseudostatements" (just emotively meaningful).
Hempel came to acknowledge that Logical Positivism's verificationism was untenable, but argued that falsificationism was equally untenable on logical grounds alone.
Popper's own falsificationism, thus, is not only an alternative to verificationism, it is also an acknowledgement of the conceptual distinction that previous theories had ignored.