Abstract
We have seen behavior analysts use the term, “discriminative stimulus (SD)” incorrectly, often equating it with an instruction in discrete trial training (DTT). We posit this incorrect use is because (1) the definition of “SD” is complex and (2) because the term is defined and used incorrectly in DTT manuals. We provide correct definitions of “SD” from textbooks, incorrect definitions and uses in DTT manuals, and recommendations for use of the term and other antecedent variable terms in behavior analytic practice.