I took it almost two years ago. I got a 176, which is a passing score. I was shocked it wasn't higher, I'm a biology nut.
For each section:
Basic Principles of Science: 9 of 12 (average performance range 6-9)
Molecular/Cellular: 31 of 39 (apr: 20-27)
Genetics/Evolution: 18 of 23 (apr 10-15)
Diversity of Life: 32 of 44 (apr. 23-33) <-- weakest area
Ecology: 20 of 22 (apr. 13-18)
Science, Tech, Society: 8 of 10 (apr 5-8)
So, it appears I scored roughly around the 75th percentile. Not as good as I hoped for
I didn't use the study guide or prep because I was confident in my abilities for *this* test, but I definitely have used the study guides for other praxis tests. Use the pdf's Praxis provides, they tell you EXACTLY what you will need to review or the test. As you can see, the percentages align to the pdf's pie chart of areas to study.