Thibault and kelley1959 = behaviour in relationship reflect economic assumptions of exchange
Try to minimise losses and promote gains (minimax principle)
Judge satisfaction with a relationship in terms of profit it yields.
Rewards and costs are subjective - may be different to others and change overtime
profit and loss
One major assumption that applies to all social relationships is that they are based on a form of exchange.
We maximise the rewards of the relationship whilst minimising the costs.
Rewards from relationships include: Being cared for, companionship & sex.
Costs can include: Effort, financial investment & time expended
Both partners try to give minimal costs in order to gain enough rewards to make the relationship profitable
comparison levels
Thibaut and Kelley proposed that we have a certain comparison level that we judge all our relationships against.
This CL is based on our expectations and experiences from previous relationships.
If the profit from a new relationship is deemed to be above the comparison level, then that relationship is thought to be worthwhile
If first relationship - get CL from parents, social media, friends, movies/tv shows
comparison levels for alternatives (second measure of profit)
Where dissatisfaction occurs people will create a comparison level for alternative relationships.
E.g. Will a relationship with person B or C be more 'profitable' than my current relationship with person A?
This is judged by weighing up the profits of starting a new relationship against the costs of ending the current one.
SET predicts we will stay in our current relationship only so long as we believe it is more rewarding than alternatives
Duck1994 = CLalt, we adopt will depend on state of current relationship if costs outweigh pros then see others as alternatives
stages of relationship development
Thibault and Kelley suggested that relationships develop in 4 stages:
Sampling- experimenting with the costs and rewards of social exchange in our own relationships/observations of other relationships.
Bargaining - romantic partners exchange various rewards and costs, identify and negotiate which is most profitable.
Commitment - costs and rewards become more predictable. Costs reduce and rewards increase due to relationship stability.
Institutionalisation - partners are now settled due to the norms of a relationship being firmly established.
supporting research
"SOME* research support for the relationship between rewards and relationship success
Joel et al (2020) conducted a meta-analysis of 43longitudinal studies of couples,
Two of the top five predictors of relationship success were 'sexual satisfaction' and "conflict"...
HOWEVER...
Joel et al. also found that another two of the top five predictors of relationship success were 'perceived partner commitment and 'perceived partner satisfaction
SET does not take perceptions of a partner's happiness into account at all.
This suggests that it is an oversimplistic model of relationship success
methodological difficulties
There are methodological difficulties with measuring benefits and costs in SET
Rewards and costs are difficult to quantify.
They can be entirely subjective and emotional
They have often been defined superficially in order to measure them e.g. money
This makes it very difficult to accurately quantify whether benefits might outweigh costs or not
Because of this..
Clark and Mills (2011) suggest that the theory only works for relationships where it is easier to keep score'.
Exchange relationships (coworkers) do involve SE, but Communal relationships (romantic partners) do not.
ignores equity
There is much more research support for equity (next topic)
Neglect of this factor means that SET may be a limited explanation.
E.g. Stafford and Canary found that over-benefitted partners were less satisfied that partners who perceived their relationship as equitable