By Matt Harrington, BCBA · Behaviorist Book Club · Clinical decision guide

Individual-Level vs. Systems-Level Approaches to Addressing Social Problems in Behavior Analysis

In This Guide

Side-by-Side Comparison
Clinical Decision Framework
Key Takeaways

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 expanding applications of behavioral systems analysis: systems of oppression & violence, 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.

Side-by-Side Comparison

Factor	Evidence-Based Approach	Traditional Approach
Unit of analysis	Individual-level: Single organism's behavior within its immediate environmental context	Systems-level: Interlocking contingencies among multiple individuals, groups, and institutions within a social system
Intervention target	Individual-level: Specific behaviors of a specific individual, modified through changes in antecedents and consequences	Systems-level: Contingency arrangements within the system, modified through policy changes, institutional redesign, or cultural shifts
Scope of impact	Individual-level: Meaningful change for the individual served, with limited generalization to others in similar circumstances	Systems-level: Potential for broad impact affecting many individuals, but changes are slower and harder to control
Measurement approach	Individual-level: Direct observation and measurement of target behaviors with high precision and experimental control	Systems-level: Multiple measures across system levels, often relying on aggregate data and quasi-experimental designs
Time to impact	Individual-level: Changes can be observed relatively quickly, often within sessions or weeks	Systems-level: Changes may take months, years, or decades to produce observable effects
Practitioner competencies required	Individual-level: Clinical assessment, intervention design, data analysis, and relationship building	Systems-level: Systems analysis, policy literacy, advocacy skills, interdisciplinary collaboration, and organizational leadership

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Clinical Decision Framework

Use this framework when approaching expanding applications of behavioral systems analysis: systems of oppression & violence in your practice:

Step 1: Is intervention warranted?

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

Step 2: Have you conducted an individualized assessment?

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

Step 3: Is the individual/caregiver involved in decision-making?

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

Step 4: Verify your approach

✓ Is your intervention matched to the assessed function?
✓ Are you using the least restrictive effective approach?
✓ Is assent being monitored throughout?
✓ Do you have a data collection plan?
✓ Is there a plan for generalization and maintenance?

Key Takeaways

Individualization is non-negotiable. The best approach for one individual may not be appropriate for another, even with the same topography.
Assessment drives intervention. Function-based approaches consistently outperform topography-based ones in the literature.
Ethics are active, not passive. Ethical practice requires ongoing analysis, not just initial compliance.
Document everything. Both the decision to intervene and the decision not to intervene require documentation and justification.
Stay current. The evidence base in this area is evolving. What was standard practice five years ago may not reflect current best practices.

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Clinical Disclaimer

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.