Volume 19 (2025) Download Cover Page

Adaptation and Validation of the IPPA Peer Attachment Subscale among Adolescents: A Study of Secondary School Students in Indonesia

Article Number: e2025577  |  Available Online: December 2025  |  DOI: 10.22521/edupij.2025.19.577

Liza Marini , Wiwin Hendriani , Primatia Yogi Wulandari

Abstract

Background/purpose. Peer attachment refers to the quality of adolescents’ relationships with peers and plays a critical role in social adjustment and engagement in learning within school environments. Despite its importance, a standardized instrument for measuring this construct has not been available in the Indonesian educational context. Therefore, this study aimed to adapt the Peer Attachment Subscale of the Inventory of Parent and Peer Attachment (IPPA) into the Indonesian language and to evaluate its psychometric properties among secondary school students.

Materials/methods. The adaptation process followed international guidelines for test translation and adaptation through several systematic stages to ensure linguistic and cultural equivalence. The Indonesian version consists of 25 items organized into three subscales: trust, communication, and alienation. Data were collected from secondary school students in Medan, Indonesia. The adapted scale was examined for construct validity and internal consistency.

Results. The findings confirmed that the Indonesian version retained the three-factor structure of the original instrument and demonstrated satisfactory psychometric properties. After analysis, 20 items showed strong validity and reliability, making the adapted scale suitable for assessing students’ peer attachment in school environments.

Conclusion. The Indonesian adaptation of the IPPA peer attachment subscale demonstrated sound validity and reliability. The scale can be considered a reliable and culturally appropriate tool for evaluating peer attachment among Indonesian adolescents, particularly within educational settings, and may support research and psychological practice in schools.

Keywords: Adaptation, Indonesian, peer attachment, secondary school students, validation.

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