Score cumulative percentages and comparison with SAT

Forty-two percent—1,300,599 students—of the 2007 high school graduating class took the ACT. Forty-three percent—1,421,941 students—of the 2008 high school graduating class took the ACT. Forty-five percent—1,480,469 students—of the 2009 high school graduating class took the ACT. The average composite score was a 21.1 in 2009 [. Of 2009 test-takers, 668,165 (or 45%) were males, 808,097 (or 55%) were females, and 4,207 (or 0.003%) did not report a gender. Nationwide, 638 students who reported that they would graduate in 2009 received the highest ACT composite score of 36.

distribution of ACT scores

Although there is no official conversion chart, the College Board, which administers the SAT, released an unofficial chart based on results from 103,525 test takers who took both tests between October 1994 and December 1996; however, both tests have changed since then, and many suggest that the College Board's analysis is biased in favor of the SAT. Several colleges and test-prep companies have also issued their own charts. The following is based on the The Princeton Review conversion chart. The cumulative percentage are based on the published 2007 ACT distribution. Note that ACT percentiles are calculated as the percent scoring the same or lower, not (as is sometimes the case) just those who score lower. Also note that these values are approximations; however, the distributions have retained a good degree of stability over the history of these tests.[citation needed] Also note that comparing percentile for the total SAT score to the percentile for the total ACT score is not a good way to compare, as many colleges have yet to start looking at the SAT's new writing section.

SAT (with writing test addition) ACT composite score The percentile of students at or below this score for the ACT (not SAT)
2400 36 100%
2340 35 100%
2280 34 100%
2220 33 99%
2160 32 99%
2100 31 98%
2040 30 96%
1980 29 94%
1920 28 92%
1860 27 89%
1800 26 85%
1740 25 80%
1680 24 75%
1620 23 69%
1560 22 62%
1500 21 55%
1440 20 47%
1380 19 39%
1320 18 32%
1260 17 25%
1200 16 19%
1140 15 13%
1080 14 9%
1020 13 5%
960 12 2%
900 11 1%

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