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Texas State University

New research identifies motivation for prescription stimulant misuse by age group

Research & Innovation

Jayme Blaschke | November 3, 2020

man holding head in hands behind pills on table

New research conducted in part at Texas State University shows that abuse of prescription stimulant medication by adolescents and young adults is driven by different motivations closely linked to age. 

The study was conducted by Ty Schepis, professor in the Department of Psychology at Texas State; along with Jason Ford, Department of Sociology, University of Central Florida; Timothy Wilens, Massachusetts General Hospital, Boston, Mass. and Harvard Medical School, Cambridge, Mass.; Christian Teter, McLean Hospital, Belmont, Mass.; and Sean Esteban McCabe, Center for the Study of Drugs, Alcohol, Smoking and Health, School of Nursing, University of Michigan, Ann Arbor, Mich.

Their research, "Differences in Prescription Stimulant Misuse Motives Across Adolescents and Young Adults in the United States," is published in the Journal of Clinical Psychiatry (

"We're interested in the reasons why adolescents and young adults misuse prescription stimulant medication, the kind prescribed for attention deficit hyperactivity disorder. The motives, the underlying reasons, are a key part of that," Schepis said. "I think the biggest take-home message from the study is those motivations seem to change as people age.

"In our sample, 14-year-olds are more likely than 21-year-olds to misuse the prescription for what we call recreational purposes—getting high, altering the effects of other drugs," he said. "What we see in those typical college years is a much higher rate of misuse specifically for studying, to focus, to concentrate, to stay awake. College students think of this as being more productive and being a better student. Now, there's a lot of evidence that it doesn't work, that it's an ineffective strategy, but that's what they think they're doing."The research team found that prescription stimulant misuse as a cognitive enhancement occurred more often in young adults compared to adolescents. Further, college students were more likely to use the medications as a cognitive enhancement than young adults of the same age who were not in school. The presence of any prescription stimulant misuse among adolescents and young adults was linked to more substance use, suicidal thoughts and other negative psychological effects.

schepis headshot
Ty Schepis, professor in the Department of Psychology at Texas State

"We believe this research gives prescribers and others working with these age groups specific motives to look out for. For the college age population what's really needed is more guidance to orient the student to college. Clarify what the expectations are, how best to study, time management, those kinds of things," he said. "The goal is to try to make them more effective students without misusing the prescription stimulant, especially since misuse is potentially dangerous and is ineffective.

"With adolescents, we see more of a typical substance abuse profile," he said. "They're using it for the more pleasurable effects of the drug, whereas a lot of college students really do misuse stimulant medication because, 'I have two projects due this week and I have to stay up late.' Those are the big take-homes."

This study examined prescription stimulant misuse motives in 86,918 adolescents and young adults aged 14-25 years using the 2015–2018 National Survey on Drug Use and Health. Individual prescription stimulant misuse motives and motive categories (cognitive enhancement only, recreational only, weight loss only and combined motives) were examined by age. While any prescription stimulant misuse was associated with higher odds of substance use disorders and mental health problems, including suicidal thoughts, odds were highest for recreational or combined motives.

For more information, contact University Communications:

Jayme Blaschke, 512-245-2555

Sandy Pantlik, 512-245-2922