
Why does training so often produce people who understood the material but still didn't change what they do? In the third episode of her seven-part series on the Kirkpatrick Model, Vanessa Milara Alzate turns to the brain science behind Level 3, behavior, and argues that behavior change has never been a learning problem — it's a habit problem.
Drawing on cognitive science, neuroscience, and behavioral science, Vanessa explains why the brain can't simply unlearn an old behavior — it can only build a new neural pathway strong enough to compete with the old one, a process called neuroplasticity. She walks through the roles dopamine, mirror neurons, and loss aversion play in whether a new behavior sticks, and introduces the intention-action gap: the space between wanting to change and actually doing it, usually caused by friction rather than a lack of willpower.
Takeaways: why behavior change is a habit problem, not a knowledge problem; what neuroplasticity means for how L&D should design initiatives; the formula practice plus reinforcement equals habit; why emotional engagement and social modeling matter as much as content; and one reflection question to run on any behavior you're trying to help people adopt.
This episode continues a seven-part series on the Kirkpatrick Model — a good week to pick up Building a Culture of Evaluation ahead of Vanessa's live Book Club discussion this fall.
Building a Culture of Evaluation
Order the book behind the Culture of Evaluation framework and updated Kirkpatrick Model. The book comes with a Companion Guide to help support you on the journey.
Enterprise Performance Intelligence (EPI) Maturity Assessment
Think your organization is measuring impact? Most aren't.
The EPI Maturity Assessment helps you quickly identify where you stand—and what's needed to better connect learning to performance and results.
👉 Take the assessment and get clarity on your next step.
Kirkpatrick Learning and Performance Center of Excellence Certification builds capability. Accreditation builds systems. The Kirkpatrick Certified Organization accreditation recognizes organizations that have embedded the Kirkpatrick Four Levels® into how they actually operate — through governance, SOPs, feedback loops, and cross-functional accountability. If your evaluation capability would disappear when a key person leaves, this is the credential designed to fix that. Founding Organization status is now open — first year of annual maintenance waived for inaugural cohort members.
Not ready to apply yet because you need to build the systems? Grab the SOPs. We're building a library of Kirkpatrick-standard SOPs — governance frameworks, evaluation procedures for all four levels, planning templates, and implementation guides — so you can build your infrastructure before you apply.
Kirkpatrick Collective
If you're ready to move beyond activity and start driving real performance, the Kirkpatrick Collective brings together leaders focused on applying evaluation in the real world.
Get practical tools, shared insight, and the structure to make better, evidence-based decisions.
👉 Join the Collective and start building evaluation as a capability—not just an activity.
Learn more about the Kirkpatrick Model
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