Coming off a career-high 35-point outing in a loss at Texas on Tuesday, Anderson went 8-of-18 from the field, including 5-of-12 from 3-point range as Oklahoma State (15-9, 4-6 Big 12 Conference) finished 11-of-30 from behind the arc. Harris hit 4-of-8 from 3-point range.
Anderson also pulled down 10 rebounds for his first career-double-double as the Cowboys outrebounded Iowa State 37-27.
Craig Brackins led Iowa State (13-12, 2-8) with 27 points. Lucca Staiger added 14 points and Diante Garrett scored 12. It was the Cyclones' 13th consecutive Big 12 road loss and 15th straight loss in Stillwater.
Byron Eaton added 16 points for Oklahoma State.
Mike Krzyzewski says he has good reason to be excited for next season thanks to a combination of Duke's incoming freshmen and a core of experienced upperclassmen.
Georgia guard Juwan Parker has been awarded a medical redshirt, leaving him with two years of eligibility, after missing the 2015-16 season with a partially torn Achilles tendon.
Forward Trevon Bluiett has withdrawn from consideration from the NBA draft and will return to Xavier for his junior season.