Gradebook Data Flags Teen Substance Use Risk

A UCLA Health study found classroom engagement scores predict adolescent substance use more accurately than GPA.

Updated on Nov. 11, 2026 in Secondary Education

Bold flat-color vector editorial illustration of a yellow pencil resting diagonally on a plain wooden school desk beside a stack of blank cream pads. — A UCLA Health study found that classroom gradebook engagement data predicted adolescent substance use more accurately than GPA among 289 Los Angeles-region students. AI Illustration. Upload story photo >

Live Poll

Would you trust school grade records to flag kids at risk of substance use?

UCLA Health researchers published a study in the Journal of School Health finding that gradebook data predicts adolescent substance use better than GPA. The study followed 289 Los Angeles-region students from sixth through eighth grade.

Why it matters

Gradebooks are updated more often than GPA and capture classroom participation, which may reflect personal and environmental influences tied to substance use. Schools and health providers could use this data to identify students who rarely see a doctor.

Nearly 15% of the 289 Los Angeles-region students studied reported using substances by eighth grade. Engagement and participation scores in gradebooks were more accurate than GPA at flagging at-risk students, though the study's broader applicability remains untested.

The players

UCLA Health

The academic medical center of the University of California, Los Angeles, whose researchers conducted the study on gradebook data and adolescent substance use.

The details

Researchers analyzed gradebook data, including test and quiz scores, homework completion and classroom engagement, against students' GPAs. Students self-reported alcohol, cannabis or other substance use, and most participants came from low-income communities.

Sixth through eighth grade: students' academic progress and self-reported substance use were tracked.
November 10, 2026: study published in the Journal of School Health.

Early Warning Signals

The study extends school early-warning systems, which districts have long used to flag dropout risk through attendance and course performance. It suggests that engagement measures inside routine gradebooks could serve a similar screening role for substance use.

Parents and educators may eventually see gradebook engagement flagged as a warning sign worth discussing with a pediatrician. The findings are preliminary, so no changes to screening practice are in place yet.

The takeaway

Classroom engagement may be an earlier, more practical signal of adolescent substance use risk than the grades students already receive. Watching how students participate could help adults intervene sooner.