Can I use the PTB Autism Core Competency Manual (QBA) to supplement the PTB ABA 6th Edition Manual?

No. The PTB Autism Core Competency Manual was developed primarily for students pursuing certification through QABA®. To ensure full coverage of the 6th Edition Test Content Outline, the PTB ABA 6th Edition Manual is the most appropriate manual.

That said, we do recommend owning both. The PTB Autism Core Competency Manual is great for any behavior analyst working with autistic individuals.