Dr. Zak is trying to determine what traits if any high-achieving students have that students who do poorly on his exams do not possess. To assess personal information from both groups of students what?

Dr. Zak could conduct a comparative study by administering surveys or interviews to gather data on various traits, such as motivation, study habits, time management, and resilience. He might also consider academic background, extracurricular involvement, and personal interests. Analyzing this data would help identify specific traits that correlate with high achievement, allowing for a better understanding of the differences between the two groups.