* Individual student: Some students are highly motivated and disciplined, while others struggle with motivation or have other challenges that interfere with completing homework.
* School and teacher expectations: Some schools and teachers assign a significant amount of homework, while others assign less or focus on different types of assignments.
* Socioeconomic factors: Students from lower socioeconomic backgrounds may have less access to resources (quiet study space, internet, parental support) that make homework completion easier.
* Subject matter: Students may be more likely to complete homework for subjects they enjoy or find easier.
While studies exist on homework habits, they generally provide percentages or trends, not exact numbers of students. You would need a very specific, localized study to get a number for a particular middle school, and even then it would only be a snapshot in time.