1. The document summarizes three recent studies on the effectiveness of game-based learning. The studies found that students who used video games as a learning aid performed better on tests compared to students who did not use games. 2. The studies involved over 2,000 students across business, economics, and management courses. Students who used games scored higher and had higher rates of A's compared to students who did not use games. 3. The researcher employed different statistical tests for each study - t-tests for business students and ANOVA tests for management students - and appropriately tailored the research methods to each course. The findings provide evidence that game-based learning can improve academic achievement.