How accurate are the ACT practice tests?

Test Preparation
1

I took a Princeton Review ACT practice test and scored a 31 English, 18 Math, 31 Reading, and 28 Science.
How accurate are the practice test scores? Will I get lower or higher when I take the test?

2

If it’s from a review guide, it’s inaccurate.

3

The best way to study for the ACT is to practice with REAL ACT tests. There are 5 tests in the Red ACT Book, 3rd Edition. They are old, but you will be able to get a good foundation of the concepts tested.
ACT released several tests in booklet form. Use them next.

TIME each practice session to simulate the real test.

English 75 questions in 45 min.
Math 60 questions in 60 min.
Reading 40 questions in 35 min.
Science 40 questions in 35 min

Score your test, and then review only what you got wrong after each practice session.

If you are practicing and but not timing yourself, the scores you are getting are not accurate.