Power Balance and Relationship Quality: An Overstated Link

Power balance, that is, equal levels of potential influence between relationship partners, has been linked to relationship happiness. This study examined whether power balance is indeed positively related to relationship quality (RQ) for both couple members using dyadic response surface analysis (total N = 879 couples). In Studies 1 to 3, we found linear but no similarity effects of power on RQ. Experiencing power was positively related to both actor’s and partner’s RQ. In Study 4, again, no similarity but actor and partner effects were found on sexual satisfaction. These findings show that the link between power balance and RQ found in previous research does not hold with sophisticated analysis techniques that overcome issues of previous approaches (e.g., difference scores). In fact, the absolute level of experienced power, not power balance, matters for both RQ and sexual satisfaction. Practitioners may target strengthening an individual’s power instead of focusing on issues of power balance.