L7 - Rusbults investment model Flashcards
what is rusbults investment model
factors which affect amount of commitment affecting decision to stay or leave
extension of SET
what are the 3 factors which affect commitment levels
satisfaction levels
comparison/quality of alternatives
investment size
what is satisfaction
positive or negative emotional experiences
extent that partner fulfils individual needs
can be compared against previous rs
what is comparison/quality of alternatives
whether needs are fulfilled better outside of rs
attractive alternative - leave rs - no investment
no good quality alternatives - stay in rs
single - better alternative than poor quality rs
what is investment size
contributes to stability of rs
measure of importance and extent of resources which could be lost if rs ends
e.g. mutual friends, home etc
invest = strong foundation = costly to break - motivation to continue rs
what are the two types of investment
intrinsic - money, energy, emotion
extrinsic - wasn’t there at the start, developed over time - children, shared memories
what is commitment level
based on consequences of satisfaction, alternatives, investment
whether the rs will persist/continue
high commitment = happy partners = continues rs
2 strengths of rusbults investment model
- explains infidelity - low satisfaction, high quality of alternatives = low commitment levels. or explains abusive rs, low satisfaction but low quality of alternatives and high investment e.g. children
- applied to different rs - investment model scale questionnaire to gay rs, found all factors important for commitment so relevant in other types of relationships
2 weaknesses of rusbults investment model
- difficulty to measure factors, responded with investment model scale but involved self reports so social desirability bias. may pretend to be more satisfied to look good and show they have a good rs
- does not account for gender differences. Lin found females tend to have higher satisfaction, lower alternatives, higher investment and stronger commitment compared to males so gender should be taken into account