<human>: Hey anyone out there that can help:

I took a free practice MCAT today at my university proctored by Kaplan staff.  Each section was 45 questions and took 3 hours.

I took it completely blind: no studying, reviewing etc.
I'm a sophomore and plan on taking the real thing either this summer or next spring.  On this practice test I just took, I have a few questions. For starters I'll say how I did:
Physical Sciences: 10
Verbal Reasoning: 9
Biological Sciences: 7
Total: 26

My questions are:
1) Is this the diagnostic Kaplan test I see if I search about practice tests online? It seems to me like the diagnostic test is supposed to be a lot harder, but I'm not sure if this was just a regular practice test.

2) Should I enroll in a course? The guy I talked to from Kaplan said their average increase was 10 points after the course. That seems too optimistic, but I was just wondering about this.

3) How much do you think I will improve if I study for 3 months over the summer?

I'd really appreciate feedback because the monetary investment is a pretty big deal if I take a class. Thank you all for reading this, I know it's a bit lengthy.

Can you provide a brief overview of the text?
<bot>: I got a 26 on practice MCAT from Kaplan with no preparation. Should I take a class and how much will I improve?