Multilevel Determinants of Academic Performance and Subject Interest among Public University Students in Bangladesh

Imagine you are trying to bake the perfect cake. You know that the quality of the ingredients (the student) matters, but so does the skill of the baker (the teacher) and the quality of the oven (the university). In the world of education, scientists have long known that a student's grades aren't just about how smart they are; they are a complex mix of personal habits, family background, teaching styles, and campus facilities. But there's a tricky question that often gets ignored: Does the recipe change if the student loves baking versus if they are just baking because their parents told them to? This study dives into that exact question, looking at whether the "secret ingredients" for success are different for students who chose their major because they are passionate about it, compared to those who are just going through the motions.

The researchers in this study decided to investigate this mystery by looking at nearly 2,000 final-year science students across 20 public universities in Bangladesh. They used a special statistical tool called "multilevel regression," which is like a magnifying glass that can zoom in on a single student, zoom out to see their entire department, and zoom out even further to see the whole university, all at once. This allowed them to see how factors at every level—from a student's mother's education to the university's bus service—stack up against each other. They split the students into two teams: the "I love this subject" team and the "I'm not really into this" team. Then, they asked: What makes each team get good grades?

The results were like discovering that the two teams are playing two different games with different rulebooks. First, the obvious: students who were actually interested in their subject scored significantly higher on average (a 3.44 grade point average) than those who weren't (3.28). But the real magic happened when they looked at why they got those grades.

For the students who loved their subject, their success was mostly driven by their own internal engine. Their grades were strongly linked to how satisfied they felt with their results, how regularly they attended class, whether they received a scholarship, and even their mother's education level. It's as if these students had a built-in GPS; as long as they kept showing up and studying regularly, they found their way to the top. Their personal motivation was the main fuel.

However, for the students who didn't love their subject, the story was totally different. These students couldn't rely on their own internal drive to carry them. Instead, their grades depended heavily on the "external scaffolding" provided by the university. For this group, having a teacher with a PhD, receiving frequent assignments, and getting high-quality feedback from instructors were the keys to success. It's like they were trying to climb a mountain without a map; they needed a really good guide (the teacher) and a sturdy rope (assignments) to make it to the top. If the teaching was poor, their grades suffered, regardless of how hard they tried on their own.

The study also found that the "environment" mattered for everyone, but in specific ways. For the interested students, having great extracurricular facilities (like gyms and clubs) and good housing and transport services gave them a boost. It seems that when you love what you do, a happy, well-supported life helps you do even better. Interestingly, the study found a surprising twist: universities with PhD programs and their own academic journals actually had slightly lower average grades for undergraduates. The researchers suggest this might be because these universities are so focused on high-level research and graduate students that they might have fewer resources left over for the regular undergrads, or perhaps the grading standards are just stricter there.

In short, this paper suggests that there is no "one-size-fits-all" recipe for academic success. If a student is already passionate about their subject, universities should focus on supporting their personal habits and family background. But if a student isn't interested, the university needs to step in with high-quality teaching, clear assignments, and expert instructors to keep them on track. The best way to help students succeed isn't just to tell them to "try harder"; it's to understand whether they need a little push of their own motivation or a whole lot of support from the school around them.