This paper discusses the outcomes of a study that examined Hans Eysenck's antisocial behavioral hypothesis (ASB). Eysenck's theory of personality has three temperament-based traits: Psychoticism (P), Extraversion (E), and Neuroticism (N). His ASB hypothesis predicts that individuals high on P, E, and N with poor socialization are at the greatest risk for the development of serious conduct problems. The study evaluated Eysenck's ASB hypothesis in 75 students receiving services for emotional/behavioral disorders (E/BD) and 75 general education students matched for age, ethnicity, and sex. Participants were enrolled in middle and high schools in five counties in a large Southeastern state. Participants were administered three questionnaires: the Junior Eysenck Personality Questionnaire, the Basic Adlerian Scales for Interpersonal Success (BASIS), and the externalizing scale of the Youth Self-Report (YSR). Participants were compared based on educational placement and by the seriousness of self-reported behavioral problems. Students with E/BD were significantly higher on the N scale and lower on the E scale in comparison to their general education peers, indicating greater risk for emotional disorders. Their assessment also suggested greater socialization difficulties than the general education participants. Appendices include data charts. (Contains 46 references.) (CR)