This study investigated the self-categorization of library employees (N = 2
54) in response to the question: Do you consider yourself to be a member of
an underrepresented group? Approximately 15% of the affirmative responses
to this question were from white majority group members. Consistent with pr
edictions based on categorization and labeling theories (Ashforth & Humphre
y, 1997), these "nontraditional" underrepresented group members were found
to have lower reported job satisfaction, poorer perceptions of psychologica
l climate and procedural justice, worse leader-member exchange quality, and
more negative reactions to diversity-related issues than employees classif
ied as traditionally underrepresented or not underrepresented. Relations be
tween nontraditional identity and two diversity outcomes (consistency of di
versity definitions and practices; general attitudes about diversity) were
completely mediated by procedural justice perceptions. Results are discusse
d in terms of labeling theory and social control in identity representation
, with implications for effectively managing diversity and organizational c
hange. (C) 1999 Academic Press.