Minnesota students continue to shine on the ACT college entrance exam, according to results being reported Wednesday.
For a ninth consecutive year, the state's seniors posted the highest average composite score among students in states in which at least half of the graduates took the test.
That average mark — 22.9 out of a possible 36 — was down slightly from the 23.0 posted in 2013. But this year's graduates also finished atop another national measure: the percentage of students deemed college-ready in each of the four subject areas tested.
This year, 39 percent of state graduates tested as proficient across the board on the ACT exam. That result was identical to 2013 and 5 percentage points higher than the 34 percent of students who achieved across-the-board success in second-ranked Wisconsin, the results show.
"I congratulate Minnesota students, teachers and administrators on this tremendous accomplishment," Gov. Mark Dayton said in a statement. "These nation-leading scores demonstrate to the entire country the academic ability of Minnesota students, the dedication of our teachers and the world-class quality of our education system."
Complicating matters, however, at least as it relates to state-by-state comparisons, is the fact that not every senior in every state takes the test.
In Minnesota, for example, 76 percent of graduates, or 45,305 students, were tested in 2013-14, up from 74 percent a year ago. But 12 states, including Michigan, Illinois and Tennessee, now require all seniors to take the ACT, meaning their composite scores reflect the performance of non-college-bound students, too. In Wisconsin, 73 percent of graduates took the ACT exam, and posted an average composite score of 22.2.
Minnesota, which soon will begin requiring all juniors to take the test, has seen considerable success at the individual level. Earlier this year, a Star Tribune survey found that more than 20 seniors and juniors who were still in school had aced the ACT. The number of so-called "36'ers" then grew in subsequent testing rounds.