Research and Data Comparisons of Gambling and Alcohol Use Among College Students and Non-College Students in the U.S. → Of young adults who gambled in the past year: 75% were college students. 70% were non-college young adults. Author(s): Grace M. Barnes, Ph.D., John W. Welte, Ph.D., Joseph H. Hoffman, M.A., and Marie-Cecile O. Tidwell, Ph.D.Year Published: 2010