MMPI-2/A assessed personality differences in people who do, and do not, stutter

Martin Treon1, Lloyd Dempster1, Karen Blaesing2
1Texas A&M University-Kingsville, United States
2Our Lady of the Lake University, United States
Cite this article:  Treon, M., Dempster, L., & Blaesing, K. (2006). MMPI-2/A assessed personality differences in people who do, and do not, stutter. Social Behavior and Personality: An international journal, 34(3), 271-294.

Volume 34 Issue 3 | e1475 | Published: April 2006 | DOI: https://doi.org/10.2224/sbp.2006.34.3.271

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The Minnesota Multiphasic Personality Inventory (MMPI-2 and MMPI-A) was administered to 60 subjects who stutter (SWS) and to 60 matched subjects who do not stutter (SWNS). Computer scored results indicate a statistically significant (p = .017) greater average tendency toward psychosocial-emotional disorder in SWS than in SWNS. Also, mean T-scores in 24 of the 93 scales/subscales assessed were statistically significantly higher for SWS than for SWNS, especially in personality characteristics related to schizophrenia, depression, healthy concerns-somatic complaints, psychasthenia, anxiety-fearfulness, and self-doubt/self-depreciation. Overall, these findings tend to support the tendency toward psychopathology (TTP) pole of the etiologic bipolar stuttering threshold hypothesis (Treon, 1995, 2002). In accord with this hypothesis, average MMPI-2/A T-scores for SWS were within the normal range of psychosocial-emotional functioning.

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