This study examined the potential relationships between locus of control, field dependence, and stress reactivity in a sample of young adult males (N=40). Locus of control, field dependence, and stress reactivity were measured by the Rotter Locus of Control Scale, the Embedded Figures Test, and the Life Events Survey, respectively. State stress reactivity was measured by a behavioral checklist developed for the study called the Anxious Behavior Checklist. Subjects were asked to complete two speeches, the second of which was significantly more stressful. Their behaviors were observed and recorded. The results indicated that: (1) locus of control was related to field dependence; (2) field dependence had some bearing on stress reporting; (3) social desirability and other variables may be significant factors; and (4) behavioral state stress was an unstable, unpredictable trait that seemed to differ on an individual basis. These findings imply that locus of control and field dependence may not be appropriate constructs for describing personality or behavioral types. A broader theoretical approach was implicated for future research. (The Rotter Locus of Control Scale, the Embedded Figures Test Response Record, the Life Experience Survey, the subject consent form, and the Anxious Behavior Checklist are appended; 12 data tables are included.) (Author/NB)