The Sussex-Oxford Compassion Scales are comprised of two self-report measures of compassion, the Sussex-Oxford Compassion for Others Scale (SOCS-O) and the Sussex-Oxford Compassion for the Self Scale (SOCS-S).
Gu, J., Baer, R., Cavanagh, K., Kuyken, W., & Strauss, C. (2019). Development and Psychometric Properties of the Sussex-Oxford Compassion Scales (SOCS). Assessment, 27(1), 3-20. DOI: 10.1177/1073191119860911