Testing the predictions of Chapman's five love languages theory: Does speaking a partner's primary love language predict relationship quality?

Chapman's claim that the key to marital happiness is "speaking" your partner's primary "love language" has been highly influential in pop culture and incorporated into therapeutic practice. However, the theory has not yet been empirically validated. The current study tests his theory, examining the hypothesis that satisfaction with one's partner's primary love language behavior predicts relationship satisfaction better than satisfaction with one's partner's nonprimary love language behavior. We recruited a sample (n = 696, M = 43.8 years, 70% married, 97.3% cohabitating) through Amazon CloudResearch. Chapman's hypothesis was not supported. Participants' satisfaction with their partners' primary love language behavior no better-predicted relationship satisfaction or perceived love than the lower-ranked love languages. Words of Affirmation and Quality Time better predicted perceived love and relationship satisfaction than participants' primary love language. These results replicate previous research and suggest that these should remain targets of intervention for relationship therapists.