Social identity uncertainty: Conceptualization, measurement, and construct validity

The following paper establishes a measurement of social identity uncertainty. Based on uncertainty-identity theory, we propose social identity uncertainty is a unique type of self-uncertainty related to group identification. We further believe social identity uncertainty is comprised of two components: identity-uncertainty (i.e., uncertainty about one's group identity) and membership-uncertainty (i.e., uncertainty about being a group member). Study 1 (N=314) and Study 2 (N=299) explored and confirmed that two subcomponents exist within social identity uncertainty. Study 3 (N=295) developed convergent validity using various social identity-related constructs, and discriminant validity using dispositional constructs. Overall, we found (a) identity-uncertainty and membership-uncertainty are distinct constructs, and (b) our measurements have both convergent and discriminant validity.