Inclusion of Other in the Self Scale.

IOS

What it measures

Subjective closeness in a relationship, represented as the degree of overlap between self and other.

Length and format

1 item. single pictorial item: choose one of seven pairs of circles at increasing overlap (self-report questionnaire)

Language versions

Language-independent by design (the stimulus is pictorial); the instruction line has been rendered in ~40+ languages

Normative data

No normative data held in our reference library for this instrument. That is a statement about our library, not about the published literature.

Licence

open with attribution

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

Reference

Aron, A., Aron, E. N., & Smollan, D. (1992). Inclusion of Other in the Self Scale and the structure of interpersonal closeness. Journal of Personality and Social Psychology, 63(4), 596-612.