Truth (knowledge) is valuable as such, for its own sake (intrinsic value).
Cf. scientific realism: there is a world out there, independently of us, and science aims at finding out what it’s like.
Behavioralism: Science aims at practical recommendations and problem-solving.
Knowledge and truth are not sought for their own sake.
Instrumentalism: knowledge has only instrumental value, not intrinsic value. (N.B. In a more specific sense, instrumentalism denies that scientific theories have truthvalues.)The aims and goals of science