The ACT is a national college admission and placement examination. Short for American College Testing, it was officially shortened to ACT in 1996. It was originally founded in 1959 as and is a private, not-for-profit organization.
Looking at their website (
http://actstudent.org/index.html), the highest score possible is a 36. There are four sections of the test: English, Math, Reading, and Science. There are 75 questions for English; 60 for Mathematics; and 40 each for Reading and Science. ACT gives you a test score (for each subject) and a composite score (an overall assessment of your test scores). A composite score of 20 means you are at the 50th percentile in the nation (50% did better than you, 50% did worse than you). Information can be found at
http://actstudent.org/scores/norms1.html
Personally, I believe I got a 34 on my ACT, and somewhere above 1300 on my SAT (when the max score was still 1600). My best friend, unfortunately, got a 36 ACT, and 1570 SAT.