Single-Item Group Identification
Psychology: Social & RelationshipsReliability: single item1 sample item
About this scale
A single-item global measure: 'Please indicate the extent to which you identify with [your group].' Scaled 1–7. Used widely when length is constrained.
Sample item(s)
“Please indicate the extent to which you identify with [target group] (1 = Not at all; 7 = Very much)”
Reliability
Reported internal consistency: single item. As a rule of thumb, Cronbach’s α ≥ .70 is considered acceptable, ≥ .80 good, and ≥ .90 excellent for established measures.
Notes
Single-item; valid alternative to Doosje multi-item.
Source & citation
Postmes, T., Haslam, S. A., & Jans, L. (2013): A single-item measure of social identification: Reliability, validity, and utility. British Journal of Social Psychology, Vol. 52, No. 4, pp. 597–617.
Source. Scale details are summarised from the publication cited above. Always consult the original source for the full item set, scoring, and permission to use.
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