Study: For Some College Students, Working Full-Time Linked To Higher Graduation Odds

Research Upends a Common Assumption About Working One’s Way Through School

Ask most academic advisors what diminishes a student’s chances of finishing an engineering degree, and holding down a full-time job usually ranks near the top of the list. Engineering programs are brutally demanding, and the standard advice has always been to minimize outside obligations and focus on school. New research suggests that advice may be worth reconsidering.

Researchers at Florida International University and the University of Kansas analyzed academic records from nearly 4,700 undergraduate engineering students at a school in the southeastern United States. Published in The Journal of Continuing Higher Education, the study tracked GPAs, whether students came back the following semester, and whether they finished their degrees within six years.

Students the researchers classified as working full-time, based on earned income rather than a direct survey, were more likely to graduate within six years than those who were not, with full-time employment associated with a roughly 58 percent probability of finishing. That result was on the borderline of statistical significance, meaning it should be read as a suggestive trend rather than a hard conclusion.

Still, it fits a broader pattern the data kept turning up: students carrying the heaviest real-world responsibilities often found ways to get to the finish line.

Full-Time Employment and Older Students Show Stronger Engineering Graduation Rates

More than two-thirds of today’s college students are what researchers call “post-traditional”: older adults, working parents, part-timers, commuters, and others who don’t fit the mold of a traditional 18-year-old living on campus. At the institution studied, the sample was majority male and Hispanic. About 16 percent had started college at age 25 or older, around 40 percent were enrolled part-time, and roughly 4 percent were classified as working full-time while taking classes.

Working full-time had no meaningful negative effect on GPA and no significant relationship with whether students came back the next semester. Older students, those who first enrolled at 25 or older, shared the graduation advantage but with a caveat. Starting college later didn’t hurt GPA and increased the odds of graduating within six years, but it made consistent enrollment harder. Older students had just a 42 percent probability of returning the following semester, compared to their younger peers.

Researchers suggest the reason may come down to motivation. Post-traditional students often develop sharper time management habits and a clearer sense of purpose because they have to. A student supporting a family or managing a job has a concrete reason to finish, and that drive can carry real weight across a multi-year degree.

Part-Time Enrollment Remains the Biggest Risk Factor for Engineering Students

While students classified as full-time workers fared well on long-term outcomes, part-time students struggled across every measure. Part-time enrollment was the only characteristic that showed a consistently negative relationship with all three outcomes tracked: GPA, returning the next semester, and finishing within six years. Being enrolled part-time was associated with just a 22 percent probability of re-enrolling the following semester.

Many students go part-time precisely because they’re working, raising kids, or managing other obligations. Yet in the study’s models, part-time enrollment was the factor most consistently tied to weaker outcomes, while full-time employment was not. Being classified as a full-time worker was linked with higher six-year graduation rates; part-time enrollment was linked with lower ones.

One possible explanation is connection. Full-time students may have more opportunities to attend office hours, form study groups, and build relationships with advisors, though the study did not directly test that idea. A student taking two classes a week is more likely to feel peripheral to campus life, and more likely to walk away when things get hard. A researcher writing on the subject back in 1991 concluded that the negative effect of part-time enrollment on student retention was “virtually the only theme that repeats itself throughout the literature,” and three decades later, that pattern still holds.

Commuter Students and the Racial Gap in Engineering Graduation Rates

Commuter students produced one of the study’s more puzzling results. At this institution, nearly all students lived off campus, so “commuter” essentially meant anyone not living in campus housing. That group had lower odds of returning the following semester, yet students classified as commuters were dramatically more likely to graduate within six years, with the researchers calculating an 82 percent probability of finishing, the strongest effect of any variable in the study. Like older students and full-time workers, commuters seem to take longer, less predictable paths to a degree but tend to get there.

In the study’s simplified race categories, students grouped as non-White had lower GPAs and were less likely to graduate within six years than White peers, with their graduation probability dropping to 43 percent. That gap carries added weight given the setting. Hispanic-Serving Institutions exist specifically to support underrepresented students, yet the disparity persisted even here. Researchers point to the culture of undergraduate engineering more broadly, a field long criticized for defining merit in ways that systematically disadvantage students from less privileged backgrounds.

Female students earned higher GPAs than male students, though that edge didn’t carry over to graduation rates, where outcomes were about equal across gender.

For students juggling a paycheck and an engineering degree, this study delivers an unexpected message: the very pressures that are supposed to hold them back may be part of what pushes them through.

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Disclaimer: This article is based on a case study from a single Hispanic-Serving Research Institution in the southeastern United States. Findings may not apply to all engineering programs or student populations. The full-time employment result was borderline statistically significant and should be interpreted as a suggestive association, not a proven cause-and-effect relationship.

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