Therefore, a valid scientific construct is not only derived from contacts with actual events within the interbehavioral continuum, but also shows coherence with the metasystem of a particular science, and the logic of science on which that metasystem is based.
The coherence of the system, including the relation of systemic specifications with metasystemic specifications and these, in turn, with specifications of the more general logic of science, is thereby essential to establishing the validity of particular scientific facts.
Kantor (1959) argued that "a naturalistic logic of science demands that systems be not only valid, but also significant with respect to a particular series of events" (p.
In this section, we present Kantor's interbehavioral psychology as a scientific system, which includes a logic of science, a metasystem of interbehavioral psychology, and a system proper.
Up to his time, philosophy of science had concentrated on such questions as how evidence confirms theories and what the difference is between science and pseudo-science, that is, questions about the logic of science
. Kuhn declared logic outmoded and replaced it with history.