By Matt Harrington, BCBA · Behaviorist Book Club · Clinical decision guide
One of the most consequential decisions a behavior analyst makes is not just what intervention to use, but how to approach the clinical question in the first place. For stuck in level 2, the difference between an evidence-based, individualized approach and a traditional, protocol-driven one can significantly impact outcomes.
This guide lays out the key factors side by side to support your clinical decision-making.
| Factor | Evidence-Based Approach | Traditional Approach |
|---|---|---|
| Mastery Criterion | Teaching to the Assessment: Mastery declared when the learner meets the criterion on VB-MAPP items with training stimuli; generalization probes optional or infrequent | Teaching to Mastery: Mastery criterion includes generalization to novel exemplars, novel instructors, and natural settings before the skill is considered functionally acquired |
| Exemplar Selection | Teaching to the Assessment: Training conducted with a small number of familiar exemplars that are used consistently across trials; novel stimuli introduced primarily at assessment time | Teaching to Mastery: Multiple exemplars used from the earliest stages of acquisition; variety of materials, settings, and instructors built into training before criterion is declared |
| Verbal Operant Balance | Teaching to the Assessment: Proportional to VB-MAPP item distribution; may overemphasize tacting and listener responding where these are most prominent on the assessment | Teaching to Mastery: Weighted toward manding as the motivational foundation for language development; intraverbal instruction systematically expanded alongside tact and listener responding |
| Generalization Data | Teaching to the Assessment: Generalization data collected only when specifically required by the assessment; data system focused on acquisition trials with training stimuli | Teaching to Mastery: Generalization probes are a routine, scheduled component of the data system; advancement to new targets contingent on documented generalization of prior targets |
| Program Revision Triggers | Teaching to the Assessment: Program modification triggered when VB-MAPP scores indicate lack of progress at the level scale; may not capture within-level stagnation | Teaching to Mastery: Program modification triggered by failure of generalization probes or by analysis of the learner's functional language use across natural settings, regardless of assessment score level |
| Outcome Expectation | Teaching to the Assessment: Advancement measured primarily by upward movement on the VB-MAPP score; transition to pre-academic curriculum triggered by achieving Level 3 passing scores | Teaching to Mastery: Advancement measured by functional language use in natural environments; transition to pre-academic curriculum triggered by demonstrated flexibility, spontaneity, and generalization of language across contexts |
The ABA Clubhouse has 60+ on-demand CEUs including ethics, supervision, and clinical topics like this one. Plus a new live CEU every Wednesday.
Use this framework when approaching stuck in level 2 in your practice:
Does the data support a need for intervention? Is there a meaningful impact on the individual's quality of life, safety, or access to reinforcement?
YES → Proceed to assessment NO → Document reasoning, monitor
A functional assessment should guide intervention selection. Avoid defaulting to standard protocols without individual analysis. Consider environmental variables, setting events, and private events.
YES → Select evidence-based approach matched to function NO → Complete assessment first
Goals should be co-developed. Assent and informed consent are ethical requirements. The individual's preferences and values matter in selecting both goals and methods.
YES → Proceed with collaborative plan NO → Engage in shared decision-making
This course covers the clinical and ethical dimensions in detail with structured learning objectives and CEU credit.
Stuck in Level 2 — Patrick McGreevy · 1 BACB General CEUs · $0
Take This Course →1 BACB General CEUs · $0 · BehaviorLive
Research-backed educational guide
Research-backed answers for behavior analysts
All behavior-analytic intervention is individualized. The information on this page is for educational purposes and does not constitute clinical advice. Treatment decisions should be informed by the best available published research, individualized assessment, and obtained with the informed consent of the client or their legal guardian. Behavior analysts are responsible for practicing within the boundaries of their competence and adhering to the BACB Ethics Code for Behavior Analysts.