The study looked at how students' personalities affect their grades in an economics course. They found that students who are both conscientious and agreeable tend to do better in the class. This means that being organized and friendly can help students succeed in their studies. The researchers used data from 105 students and found that conscientiousness, agreeableness, and the combination of both traits were all linked to academic performance. Students with high levels of both traits did better than those with low levels. This suggests that having a good work ethic and being cooperative can lead to better grades in economics.