Alex Olah added 10 points for the Wildcats (13-14, 4-10 Big Ten), who have won three straight after snapping a 10-game losing streak.
Geno Thorpe scored 13 points for Penn State, which scored a season-low point total and shot a season-low 27 percent. The Nittany Lions have lost four straight and six of seven.
Penn State's DJ Newbill, the Big Ten's leading scorer at 21.1 points per game, finished with three points on 1-for-6 shooting and nine rebounds. He scored his first points on a 3 with 1:25 remaining to cut the lead to 56-39.
The Nittany Lions (15-13, 3-12) also committed 14 turnovers and went 1 for 8 at the free-throw line in a meeting of teams in the bottom third of the Big Ten standings.
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