RESEARCH DESIGN CAN A VISUAL ILLUSION IMPROVE SPORTS PERFORMANCE? 2 OF 9 In the study, 32 participants putted a golf ball to a 5-centimeter golf cup, Each participant attempted a total of 20 putts. The researchers wrote, "A downward-facing projector displayed a ring of 11 small [3.8 centimeters in diameter] or S large (28 centimeters] circles around each hole to create an Ebbinghaus illusion?" For each illusion, participants "attempted 10 putts from a distance of 35 meters, and we recorded how many putts dropped into the hole" (With et al, 2012 p. 397]. The researchers hypothesized that participants would make more putts when the hole was surrounded by smaller circles (making the golf hole appear larger) than when it was surrounded by larger circles (making the golf hole appear smaller). How would you classify the design of this study? O A, This was a correlational study. @:B. This was an experiment using a between-groups research design. Q C. This was an experiment using a within-groups research design; Q D. This was an outlier analysis