Validation of the MMPI-2 Social Introversion Subscales

Abstract

This study examined the validity and the components of the new Shyness/Self-Consciousness (Si1), Social Avoidance (Si2), and Self/Other Alienation (Si3) subscales of the Social Introversion (Si) scale of the MMPI-2. Data provided by 410 college students were used to evaluate subscale performance against self-report measures of constructs that were believed to be differentially related to the 3 subscales. Results suggested that the Si subscales are valid. It also appears that individuals with elevated scores on Si1 may be more socially anxious, less social, and have lower self-esteem; that those who have elevated Si2 scores may be more shy and less social; and that those with elevated Si3 scores may possess lower self-esteem and have a more external locus of control.