While former Florida quarterback Tim Tebow wowed evaluators with his on-field performance at the NFL combine last month, he scored a 22 out of 50 on the Wonderlic test, the Palm Beach Post reported, citing an NFL source.

The 12-minute test measures an individual's learning and problem-solving abilities.

According to the Post, the average Wonderlic score for an NFL quarterback is 24. The newspaper also reported that the quarterback prospects in Mel Kiper Jr.'s latest rankings on ESPN.com -- Sam Bradford of Oklahoma (36), Colt McCoy of Texas (25) and Jimmy Clausen of Notre Dame (23) -- scored higher than Tebow.

To put those scores in perspective, the Post compared Wonderlic numbers of run-of-the-mill NFL quarterbacks such as Alex Smith (40) and Matt Leinart (35) to those of Pro Football Hall of Famers Dan Marino and Jim Kelly (both 15) and an established star such as Donovan McNabb (14) of the Philadelphia Eagles.

Tebow is a Heisman Trophy winner who won two national championships at Florida. According to the newspaper, he graduated with a 3.66 GPA majoring in family, youth and community services.

Grades and Wonderlic scores likely won't determine how his NFL future will unfold. In an attempt to better adapt to the pro game, Tebow is changing the way he holds a football, shifting it from his waist to his shoulder. He intends to show off his refined style on his pro day for scouts at the University of Florida on Wednesday.

"There are things that I can get a lot better at -- my fundamentals," Tebow said in February. "I've never been asked to shorten or quicken my release and not have a loop in it. The changes I'm making have gone very well and it's becoming more and more natural to me."

Information from The Associated Press was used in this report.