We examine the validity and reliability of a single‐item measure of social identification (SISI). Convergent validity is shown with significant positive correlations with previously published unidimensional and multidimensional measures of in‐group identification and other group‐relevant measures (e.g., entitativity and collective self‐esteem). Divergent validity is shown via nonsignificant correlations with social desirability measures. Predictive validity is shown with positive correlations with group‐relevant behavior (e.g., volunteerism and voting). External validity is shown with correlations with other in‐group identification measures in a community sample. The reliability of the scale is shown by examining scores of the SISI for six different identities at three points in time. Copyright © 2013 John Wiley & Sons, Ltd.

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We examined the influence of the university environment (Study 1), and specific college courses (Study 2), on the antecedents and outcomes of global citizenship identification. In Study 1, participants' perception of the university environment as prescribing a global citizen identity predicted the perception of one's normative environment as prescribing this identity and global awareness (antecedents) leading to greater identification with global citizens. Global citizenship identification then predicted greater endorsement of prosocial values and behaviors (outcomes). In Study 2, participants' perception of a class as encouraging greater global understanding influenced the antecedents, global citizenship identification, and its outcomes. The results highlight the importance of a university setting as a normative environment for development of global citizenship identification and related prosocial values.

The four studies constructed and examined the validity of a text-based dictionary for assessing the values related to global citizenship. In Study 1, an initial list of words related to global citizens was obtained by conducting an analysis of participant definitions of the construct. In Study 2, the list obtained in Study 1 was further explored through a reaction time based categorization task. Words most quickly and reliably associated with global citizens were combined with synonyms to comprise the final global citizen dictionary. In Study 3, a greater number of global citizen related words were used to describe a global citizen (vs. entrepreneur). In Study 4, the use of global citizen related words when describing one's core values was shown to predict antecedents, identification, and outcomes of global citizenship. Together, the results provide initial validation of a linguistic measure of values related to global citizenship.

The four studies constructed and examined the validity of a text-based dictionary for assessing the values related to global citizenship. In Study 1, an initial list of words related to global citizens was obtained by conducting an analysis of participant definitions of the construct. In Study 2, the list obtained in Study 1 was further explored through a reaction time based categorization task. Words most quickly and reliably associated with global citizens were combined with synonyms to comprise the final global citizen dictionary. In Study 3, a greater number of global citizen related words were used to describe a global citizen (vs. entrepreneur). In Study 4, the use of global citizen related words when describing one's core values was shown to predict antecedents, identification, and outcomes of global citizenship. Together, the results provide initial validation of a linguistic measure of values related to global citizenship.