An approach for personality-based self-discrepancy (PBSD) measurement is pr
oposed, whereby self-beliefs and incongruities among their contents are ass
essed with respect to five-factor model (FFM) semantic dimensions. Selves Q
uestionnaire attributes from 191 college students were coded against L. R.
Goldberg's (1990) FFM factor analysis to construct personality scores for a
ctual, ideal, and ought self domains, as well as several PBSD indices. Mult
ivariate analyses were conducted to test self-discrepancy and personality s
tructure hypotheses, and to demonstrate this strategy's operational flexibi
lity. Profile analyses indicated that empirical self-discrepancies depend u
pon whether and how personality structure is incorporated. Methodological a
lterations influenced self-discrepancy findings negligibly. Initial evidenc
e for PBSD construct validity and predictive specificity is presented, and
the approach's implications, advantages, and extensions are discussed.