I have heard that the PRITE had good correlation with the first two sections old board exams. However the current PRITE people say that the PRITE is not a good measure of how people do on the ABPN exam. In general if you did well on the PRITE you will be fine, but essentially doing poorly on the PRITE doesn't necessarily correlate with performance on the ABPN exam. This is partly because people don't study for the PRITE, partly because the PRITE is supposed to test people at a range of different levels, whereas the ABPN is an exit/minimum competency exam, and partly because the ABPN keep the contents of the board exam secret so even if the PRITE wanted to closely mirror the ABPN exam they are reliant on what test-takers say was on it. Also now there are all those videos, and the PRITE doesn't yet have a video component, though it will do in the future. The videos have much more distracting information than just a written vignette which means people are more likely to get them wrong.