This study investigated the immediate effects of social exclusion on anxiety and emotional response variables, and the modifying role of locus of control. Participants were 40 students from two Midwestern undergraduate universities. Students were given the Duttweiler Internal Control Index (ICI), as well as a modified form of Spielberger's State-Trait Anxiety Inventory (STAI) in combination with a simulated social interaction designed to facilitate feelings of exclusion in some participants. Results indicated significantly increased feelings of anxiety among both individuals in the control group and individuals with a more internal locus of control among excluded individuals. Discussion included suggestions for future modification of scales designed to measure effects of social exclusion as well as an attempt to explain the differences in effect magnitudes between locus of control levels.
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