Thanks for the reply. I agree, McKenzie contains a behavioral component. But when it comes to CBT, there are things like "graded activity", "graded exposure" and other "techniques" that try to combat psychological pain defense mechanisms like "fear-avoidance", "catastrophizing" and so on.

For physiotherapists dealing with a lot of patients with chronic pain of some sort, it's important to be able to reach through to the patient... I've seen behavioral techniques here and there but I've heard so many positive things about CBT I wanted to find out more about that method specifically.