Abstract
In the current study eight college students were exposed to a S-MTS procedure utilizing auditory stimuli consisting of common sounds. During emergent relations tests, participants were asked to talk aloud, and their vocal-verbal statements were transcribed and categorized as Class-Consistent, Class-Inconsistent, or Irrelevant. All participants met emergence criterion for symmetry, but only four did so for equivalence. All participants used either experimenter-defined or unique tacts and engaged in intraverbal statements. Data show evidence of a strong, positive correlation between class-consistent statements emitted by participants and correct selection responses during S-MTS tasks. Such results suggest possible verbal mediation during emergent relations tests.