I believe you're right too, Parker. In addition to what you said, 'behavioral' is an adjective while 'behavior' is a noun. In the case of 'Cognitive Behavioral Therapy', 'cognitive behavioral' describes (adjective) the type of 'therapy' - unless the term is 'behavior therapy' and not 'therapy', which, in this case, 'cognitive is the only adjective, which makes it correct to say 'cognitive behavior therapy'.

I believe the correct term for CBT is 'Cognitive Behavioral Therapy'. Anyone confuzzled?