i mentioned in another post that i took the adult pmhnp test in 2007, i also took the new test when ancc was asking for volunteers to take the test so they could get preliminary data about the test. i took the tests about 9 months apart. for the real test for certification i only used the ancc study guide which was online and had a voice recording that was pretty useless, which was also under revision so they only had the old guide, but i just tried to memorize everything in it and everything i could think of related to the topics. i didn't study at all for the second test and we were never told scores. to me the tests were almost exactly the same. there was very little difference, so i wouldn't expect the new test to be any improvement or any more difficult than the last test. (many questions were literally the exact same questions as the old test)
my best advice is to read the questions carefully and read questions multiple times, look at all the answers and see how they fit into the question. most of the questions are really badly written, poorly worded, and the most difficulty i had was trying to figure out exactly what they were asking. i felt if i could figure out the question i would know the answer most of the time. some questions were short and straight forward, go through those quickly, but anything with a full sentence or more--read them carefully.
i felt pressured for time when taking the test and tried to move quickly bc i was afraid i would run out oftime, but i finished with probably 45 minutes remaining--so, there is time to read and think about the questions--so definitely do this. and yes, i passed first time.