W. M. Gray's "How is Your Logic?" a Piagetian-based, group-administered written test of cognitive development, and B. Leadbeater's Livian Wars Task, a formal operations-based, written, social-cognition problem were given to 348 college undergraduate and graduate students to investigate the impact of chronological age and amount of formal education on the development of formal operations and social-cognitive relativistic reasoning. Gray's test included 13 items, five measuring three concrete operations and eight items measuring four formal operations. At a minimum, the Livian Wars Task required the use of various formal operations to successfully answer questions about a fictitious war between two neighboring countries. The task emphasized the relativity of thought necessary to adequately understand a complex social interaction (war) between two groups of people. The results indicated only weak evidence for changes in formal operations across ages and education, but social-cognition was affected by age and education. Social-cognition and formal operations were not related. (HOD)