In each section, you will get a raw score, which is a mark based on how many questions you've answers correct. To translate the raw score to the scaled 1-15 MCAT mark, your raw score will be used to compare with everyone else who took the exam. So basically a mark of 1-15 reflects how well you did compared to everyone else. To be more specific, an 8 would be average (since it's the median between 1-15). Anything above 8 would be considered above average. Anything below 8 would be considered below average. Higher mark like 13-15 probably indicate that you're in the top 90% of everyone who wrote the exam. While low marks like 1-3 would indicate you're in the low 10% of everyone who wrote the exam.
So 8 or 7 on a section doesn't mean you failed it (depending on your standard of course), it just indicate that you're "average".
