The Identity Distress Scale (IDS) was developed as a clinical indicator of severe disturbance or interference in identity development (Berman, Montgomery, & Kurtines, 20048.
Berman , S. L. , Montgomery , M. J. , & Kurtines , W. M. ( 2004 ). The development and validation of a measure of identity distress . Identity: An International Journal of Theory and Research , 4 , 1 – 8 . [Taylor & Francis
... [Show full abstract] Online]View all references) based on the Diagnostic and Statistical Manual of Mental Disorders as identity disorder (DSM–III–R) and, subsequently, as identity problem (DSM–IV). This study examined various indices of identity distress as indexed by the IDS in relation to several antecedents and outcome measures among university students in Canada and Spain. Prevalence rates of 9.7% for identity disorder and 18.8% for identity problem were consistent for these students. Identity distress inversely related to psychosocial maturity as measured by ego strengths and the protective resource of social supports; expected associations were found with the outcome measures (academic, social, and personal-emotional adjustment to college; academic locus of control; and stress). Ego strengths accounted for a greater proportion of the variance in most outcome measures than did identity problem scores. However, both ego strengths and identity problem scores independently contributed an equal proportion of the variance with respect to global identity distress. Results supported associations between identity problems and psychosocial functioning as well as measures of adjustment among university students.