Researchers
Thibault and Kelley
2 things to use in order to assess the potential profits we gain from a relationship
Research to support
Floyd et al. (1994)
found that commitment develops when couples are satisfied with, and feel rewarded in, a relationship and when they perceive that equally attractive or more attractive alternative relationships are unavailable to them.
deterministic
According to SET, if the costs outweigh the rewards, a person will want to opt out of a relationship. However, there are many cases where people stay in high-cost relationships (for example, when one partner is chronically ill) without feeling dissatisfied.