Detecting unexpected variables in the MMPI 2 Social Introversion scale.

C. H. Chang, B. D. Wright

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


The standard scoring structure of the revised Minnesota Multiphasic Personality Inventory (MMPI-2) Social Introversion (Si) scale was reexamined with Rasch Measurement. The 69-item Si scale split into two distinct dimensions when their standardized residuals were factor analyzed. Items keyed "true" to Si defined one dimension and items keyed "false" defined another. Relationships between Lexile values (an index of reading difficulty and comprehension) and item difficulties were also explored. The article shows how to use Rasch Measurement to understand and improve personality assessment.

Original languageEnglish
Pages (from-to)227-240
Number of pages14
JournalJournal of applied measurement
Issue number3
StatePublished - 2001


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