The psychometric qualities of a short version of the Experiences in Close Relationships Scale - Revised Child version

The Experiences in Close Relationships Scale - Revised Child version (ECR-RC; Brenning, Soenens, Braet, & Bosmans, 2011a) is a valuable tool for measuring anxious and avoidant attachment to parents in middle childhood and adolescence. However, given its substantial length, the present study aimed to develop an abridged ECR-RC. Four separate samples were used to attain this goal. First (Sample 1, N = 1880; M = 12 years), item selection resulted in a 12-item version, comprising six items for attachment anxiety and six items for attachment avoidance. Next, psychometric properties of this brief ECR-RC were investigated in Sample 1 and cross-validated in an older sample (Sample 2, N = 310; M = 16 years) and in a clinical sample (Sample 3, N = 99; M = 14 years). In all three samples, comparison of the full and reduced ECR-RC revealed similar psychometric properties. In a final sample (Sample 4, N = 110; M = 18 years), we assessed reliability, factor structure and validity when administering the 12-item ECR-RC as a stand-alone instrument. In conclusion, the brief ECR-RC showed excellent reliability and validity.