Lena Roemer was poring over data from 8,000 lives when she realized something quietly revolutionary: the spark of a person’s interests—what they genuinely enjoy doing—doesn’t fade with age, but instead continues to shape their path for decades. Based in East Lansing at Michigan State University, Roemer and her team have overturned a long-held assumption: that vocational interest tests are just for teenagers filling out college applications. Their 11-year study, published in the Journal of Personality and Social Psychology, reveals that the things people are drawn to—whether leading teams, creating art, or helping others—predict not only career success but also relationship stability and community engagement well into midlife and beyond.
This isn’t just about job satisfaction. The study tracked adults from 2011–2012 onward, measuring their interests across six well-known dimensions—Realistic, Investigative, Artistic, Social, Enterprising, and Conventional—and then examining major life outcomes over time. What they found was striking: interests matter as much, and sometimes more, than the widely studied Big Five personality traits in predicting how people fare in life. Enterprising interests—like leadership, business, and influencing others—were most consistently linked to positive outcomes in work and community involvement. Social interests strongly predicted relationship quality, while artistic inclinations were tied to cultural participation, such as attending concerts or engaging in creative hobbies.
The timing of these influences shifts across life stages. For instance, relationship outcomes were most accurately predicted by interests in early adulthood, while work-related achievements—like promotions or job satisfaction—were best forecasted during midlife. Yet many connections remained stable across decades, especially in areas less bound by societal expectations. A person who values creativity at 25 is still likely to seek it at 55, shaping their choices in subtle but meaningful ways.
Co-author Kevin Hoff, assistant professor at MSU, puts it plainly: vocational interests have been overlooked in psychology for too long. With predictive power rivaling established personality models, they deserve a central place in how we support people’s development at every age. The study, also co-authored by Christopher Nye at MSU and Rong Su at the University of Iowa, opens the door to reimagining interest assessments not as one-time school exercises, but as lifelong tools for personal and professional growth. As people navigate career changes, relationship shifts, or community roles later in life, understanding their core interests could be just as vital as it was at 18. The message is clear: it’s never too late to align your life with what you truly care about.