I took the test in March 2019. I missed it by a few points as well. I scored 347. The minimum score to pass is 350. I took the CE Series Review Course, ANCC review questions about 200, and the NI Scope/Standards text to review. I've worked in Nursing Informatics for 1.5 year.
Honestly, I didn't study as rigorously as I should have. I also remember seeing questions with content that I hadn't come across in the review course at all. The primary sections of the test are Foundations of Practice, SDLC, and Data Management/Healthcare Technology. I scored the lowest in SDLC.
Planning to retest in December 2019. I am taking the ANA/ANCC Interactive online web based review course, reviewing the ANCC review questions, and I've also purchased 2 textbooks listed on the ANCC test reference list:
Schwalbe K. Information Technology Project Management. 8th ed. Boston, MA: Course Technology, Cengage Learning; 2016.
Kendall KE, Kendall JE. Systems Analysis and Design. 9th ed. Upper Saddle River, NJ: Pearson Education; 2014.
I purchased these 2 textbooks since I scored lowest in SDLC. I also remember quite a few questions related to project management. I've been reading and reviewing material/questions daily for an hour or two. Hoping to get it right the next go round.
Best of luck to everyone!