I attended the Barkley & Associates review course and found this to be very beneficial for focusing my studies. Barkley is largely geared toward the clinical aspects of the test but the study book does have a few sections on gero, research, ethics, etc. I took the ANCC adult/gero primary care exam at the end of June 2013 and passed the first time but I really had to take my time and think through each question to make sure that I understood what they were asking for. I HIGHLY recommend purchasing the ANCC practice questions from their website ($115) and you may also like to purchase the "tips for answering questions" program ($25). I "failed" all of the practice tests that I took by about 1 or 2 points toward the end of my studying (73-74% on ANCC practice tests) and was a gigantic mess before taking the exam but in the end I passed. I attribute my passing to taking my time, not overthinking questions, and just doing the overall best that I could. I am SOOOOO happy it is over. Good luck, hang in there. I suggest taking a Barkley diagnostic readiness tests (DRT) before you start studying so that you know how to tailor your material. DO NOT go too easy on the communication, medicare, research, ethics, etc. portions of the material as I felt that these sections made up a MAJORITY of the ANCC exam as outlined on their website.