Which training design methodology and learning theory focuses primarily on directly linking instructional objectives to concrete, observable, and measurable behaviors through stimulus-response conditioning and reinforcement?

In instructional design and training development, different learning paradigms govern how content is structured and evaluated. The Behaviorist Approach (rooted in the psychological theories of B.F. Skinner and John B. Watson) views learning as a change in external, observable behavior. Training designed under this framework sets explicit, behavioral objectives (e.g., "by the end of this module, the trainee will demonstrate Procedure X without error"), relying on practice, feedback, and reinforcement to reinforce desired behavioral outcomes.