I've been studying for the PCAT, and I recently took a practice test (the one in the back of the Kaplan 2010-2011 book). I was wondering how, roughly, my percentage of questions correct per section would correspond to percentile scores; are there any rule of thumbs? Does the percent correct approximately equal the percentile?
For the record, I got approximately 73% on the bio, 83% in the chemistry, 83% on the quantitative, 75% on reading comprehension, and 95% in verbal.
Here, I'll tell you what I got on some of the Dr. Collins tests and what I got on actual PCAT.
QA tests - 84.6%, 77%, 84.6%, 80.7% actual pcat - 65 percentile
Verbal - 80%, 88%, actual pcat - 97 percentile
RC - 81.25%, 91.6%, 85.4% actual - 60 percentile
Bio - 83.3%, 91.7%, 79.1%, 76.2%, 93% - actual 94 percentile
Chem - 84%, 84%, 85.4%, 82%, 84.7%, 76%, 89.6% actual pcat - 93 percentile
Essay - 3/3, only wrote 2 essays prior to test
Composite - 92 percentile
For my Kaplan tests: RC - 65%, 78% , Bio 78%, Chem 75% - couldn't find all my old answer sheets sorry. I do remember thinking the way Kaplan worded some of the questions was trickier than the actual PCAT. Take a lot of practice tests if you can, I'd say if you're scoring 80%+ everytime you're doing pretty well. Take the official PCAT practice and you'll know for sure.