Data Driven Dogs
Behavior Modification
Replace the Form, Respect the Function
Your dog jumps because jumping works — it gets attention, access, contact. Functional communication training doesn't suppress the jump. It teaches your dog a new way to ask for the same thing. When the replacement behavior pays off and the old one doesn't, the old one drops out on its own.
Where FCT Comes From
Carr and Durand's 1985 landmark study taught four developmentally disabled children communicative phrases that accessed the same reinforcer their problem behavior had produced. Children who hit to escape tasks learned to say "I don't understand." Those who acted out for attention learned "Am I doing good work?" Problem behaviors dropped to near-zero across all four participants.
The core principle — "replace the form, respect the function" — was formalized for animal practitioners by Susan Friedman, whose Hierarchy of Behavior-Change Procedures (2008) places differential reinforcement of alternative behavior above extinction, negative reinforcement, and punishment. Her FAID framework operationalizes this: make the problem behavior irrelevant, inefficient, and ineffective while making the replacement relevant, efficient, and effective.
FCT Is Not "Teach an Incompatible Behavior"
The difference between FCT and DRI is not procedural but conceptual. DRI selects a replacement based on physical impossibility — the dog can't jump while sitting. FCT selects a replacement based on functional equivalence — the sit produces the same reinforcer that jumping produced.
When a trainer teaches "sit" and reinforces it with food treats while the dog's jumping was maintained by owner attention, the intervention addresses topography but not function. The dog's need for attention remains unmet, creating conditions for resurgence.
The Canine Evidence
No published canine study uses the term "FCT" explicitly. But the mechanistic components appear throughout the growing canine ABA literature:
Dorey et al. (2012)
Conducted functional analyses of jumping in three pet dogs. Found jumping was maintained by access to tangibles in two dogs and attention in one. Applied function-based DRO treatments.
Waite & Kodak (2021)
Demonstrated owner-conducted functional analysis and function-based treatment for puppy mouthing. Found socially mediated functions (attention and tangible access) across all three subjects.
Mehrkam et al. (2020)
Extended FA methodology to resource guarding, identifying multiply controlled behavior and reducing it to zero with function-matched treatments.
Salzer et al. (2024)
Introduced trial-based functional analysis with dogs, embedding assessment conditions in naturalistic environments.
Building an FCT Protocol for Your Dog
1
Identify the function
Watch three instances of the problem behavior and ask: what happened immediately after? What did the behavior produce for the dog?
2
Choose a function-matched replacement
The replacement must produce the same reinforcer. Attention-maintained jumping → sit produces social engagement. Tangible-maintained jumping → sit produces access to the desired object.
3
Make the replacement efficient
The new behavior must be easier and faster to perform than the old one, and must produce the reinforcer more reliably.
The Function Test
If you can't name what the problem behavior produces for the dog, you're not ready to pick a replacement. The answer is almost never "dominance" or "spite" — it's attention, access to something, escape from something, or sensory stimulation.
Every Dog Is Different
The right approach depends on why your dog does this — and that varies by temperament, history, and environment. The Synchrony coach can tailor these principles to your dog's specific behavior profile.
Sources: Carr & Durand (1985), Friedman (2008), Dorey et al. (2012), Pfaller-Sadovsky et al. (2019), Waite & Kodak (2021), Mehrkam et al. (2020), Salzer et al. (2024). From the Data Dogs research brief: ABA Methodology Applied to Canine Behavior Modification.