Tune the Environment, Not the Person: A 3-Step Framework That Makes ABA Finally Make Sense
- drbobcarey
- Apr 13
- 3 min read
I understand how overwhelming ABA jargon can feel, so I’ve broken one core concept from the Positive Systems Approach into a simple, usable framework you can apply today. Observe. Hypothesize. Test an environmental change.
Think of it like tuning a radio: first you listen, then you guess which dial needs adjustment, and finally you turn it slightly to see if the signal clears. Why this matters: PSA adapts ABA into a strengths-based, system-wide model that teaches coping skills and reshapes environments—so you’re not just managing behavior, you’re supporting growth.
Quick evidence: small, targeted environmental adjustments plus skill-teaching consistently reduce challenging episodes and boost independence.
Use this three-step carousel or thread to guide parents and professionals through a practical mental model that demystifies ABA and centres positive change.
Want a ready-to-use checklist and sample scripts for each step?
Click below for a printable and fillable .pdf versions of this checklist:
🧠 Observe → Hypothesize → Test
A Practical Checklist + Scripts (Positive Systems Approach)
🔍 1. OBSERVE
Goal: Understand what’s actually happening—without judgment.
✅ Checklist
☐ What exactly is the behaviour? (be specific, observable)
☐ When does it happen? (time of day, transitions, demands)
☐ Where does it happen? (settings, environments)
☐ Who is present?
☐ What happens right before? (triggers/antecedents)
☐ What happens after? (responses, outcomes)
☐ What might the person be experiencing? (fatigue, confusion, overwhelm)
☐ What’s already working well?
💬 Sample Scripts
Use these to guide thinking or conversations:
“Let’s slow this down—what did we actually see happen?”
“When is this easiest for them? What’s different then?”
“What tends to happen right before this starts?”
“What might this behaviour be communicating?”
“Where are the moments things go well?”
💡 2. HYPOTHESIZE
Goal: Make a best guess about what’s driving the behaviour—and what might help.
✅ Checklist
☐ What function might this behaviour serve?
(escape, access, sensory, attention, predictability, etc.)
☐ What environmental factor might be contributing?
Task difficulty?
Unclear expectations?
Sensory overload?
Lack of choice/control?
☐ What skill might be missing?
☐ What small change could reduce the barrier?
☐ Can I test one change at a time?
💬 Sample Scripts
“Based on what we saw, I wonder if this is happening because…”
“Could this be their way of avoiding something that feels too hard or unclear?”
“What if we adjusted the environment instead of expecting them to adapt?”
“What’s one small change we could try that might make this easier?”
“If this worked, what would we expect to see instead?”
🔄 3. TEST AN ENVIRONMENTAL CHANGE
Goal: Try a small, intentional change—and see what happens.
✅ Checklist
☐ Choose ONE small change (not multiple at once)
☐ Define what success would look like
☐ Implement consistently (same context if possible)
☐ Observe what changes (frequency, intensity, engagement)
☐ Did things improve, stay the same, or worsen?
☐ Keep, adjust, or try a new hypothesis
💬 Sample Scripts
“Let’s try this one small adjustment and see what happens.”
“We’re not looking for perfection—just improvement.”
“Did the situation feel easier, harder, or the same?”
“What changed after we made that adjustment?”
“Should we keep this, tweak it, or try something else?”
🔁 Putting It All Together
👀 Observe: What’s happening?
💡 Hypothesize: Why might it be happening?
🔧 Test: What small change can we try?
➡️ Repeat, refine, and build on what works.
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