The authors attempted to identify key contributing factors to school dropout among 3 categories of at-risk students: those with low grade point averages, those who had been suspended, and those from low socioeconomic backgrounds. Logistic regression analysis of the data, which were derived from the National Longitudinal Survey of Youth-1997 (U.S. Bureau of Labor Statistics, 2002) indicated that student dropout rates were affected differently by students' membership in the 3 at-risk categories.