Final answer:
The dimension of ABA in question is 'generality,' which emphasizes that ABA interventions should have widespread applicability. This concept is one of the dimensions highlighted by Baer, Wolf, & Risley in their framework for Applied Behavior Analysis. Option b is correct.
Step-by-step explanation:
The dimension of ABA (Applied Behavior Analysis) as outlined by Baer, Wolf, & Risley (1968) that is being referred to in the question is generality.
This reflects the principle that the changes in behavior resulting from ABA interventions should extend across various environments, times, and behaviors.
The other dimensions outlined by these authors are applied, behavioral, analytic, technological, effective, and conceptually systematic, which together contribute to the comprehensive framework of ABA.
Empirical evidence, referred to in the context of scientific research, means that the findings are based on observation or experience, rather than being solely theoretical.
Hence, option B is correct.