Validation of the short version of the experiences in close relationship in adults with a same sex partner

Abstract

Attachment includes two dimensions (anxiety by abandonment and avoidance of intimacy). For its evaluation, the validation of the brief version of the Experiences in Close Relationship (ECR-S) scale was carried out in adults with a same-sex partner. Construct validity, factorial invariance, differential item functioning, reliability of internal consistency and concurrent validity were examined. A sample of 815 homosexuals and 815 heterosexuals (half men and half women) were used, all of them in a couple relationship. The bifactorial structure of the ECR-S is confirmed, being invariant by sexual orientation and sex. Its two dimensions have an adequate internal consistency and their measurements show evidence of validity. The ECR-S constitutes an excellent tool for assessing attachment in homosexual adults with a same-sex partner.