Passionate Love Scale

Hatfield, E., & Sprecher, S. (1986). Measuring passionate love in intimate relationships. Journal of Adolescence, 9, 383-410. https://doi.org/10.1016/S0140-1971(86)80043-4

LovePassion

Perceived Relationship Quality Components (PRQC) Scale

Fletcher, G. J. O., Simpson, J. A., & Thomas, G. (2000). The measurement of Perceived Relationship Quality Components: A confirmatory factor analytic approach. Personality and Social Psychology Bulletin, 26, 340–355. https://doi.org/10.1177/0146167200265007

CommitmentTrustSatisfactionRelationship QualityPassionIntimacyLove

Braiker & Kelley Relationship Questionnaire

Braiker, H., Kelley, H., Burgess, R., & Huston, T. (1979). Social exchange and developing relationships. In R. Burgess & T. Huston (Eds.), Social exchange in developing relationships (pp. 135–168). Academic Press.

LoveConflictAmbivalenceMaintenanceRelationship Quality

Personal Assessment of Intimacy in Relationships (PAIR)

Schaefer, M. T., & Olson, D. H. (1981). Assessing Intimacy: The Pair Inventory. Journal of Marital and Family Therapy, 7(1), 47–60. https://doi.org/10.1111/j.1752-0606.1981.tb01351.x

IntimacyLove

Compassionate Love Scale

Sprecher, S., & Fehr, B. (2005). Compassionate love for close others and humanity. Journal of Social and Personal Relationships, 22(5), 629-651. https://doi.org/10.1177/0265407505056439

LoveCompassionate Love