rusbults investement model

Question 1

strength:there is research support for the investment model as a theory of romantic relationships.

Answer 1

E:Le presented meta-analysis consisting of 52 studies from 5 countries.this study showed that satisfaction correlated to commitment and especially stability in long term relationships.
E:These correlations the investment model theory that the model provides a valid account of the variables that contribute to the stability of romantic relationships.the study being a meta analysis strengthens it because it is generalisable to a larger population.
L:therefore this study has a strong design supported by research support.

Question 2

limitation: methadology if research

Answer 2

E:much of its supporting research is self report data.
E:this can be problematic because the investment model as correlation does not always equate to causation. this means the association between investment and commitment might mean that investment increases commitment or the opposite. the study being self report limits validity because it may be victim of social desirability bias(providing inaccuracies)
L:therefore, research being methadology means research should be treated with caution.

Question 3

strength: its explanatory power

Answer 3

E:Rusbult and Martz found that individuals victim to commitment domestic abuse reported to having few attractive alternatives.
E:this helps to understand why individuals may be trapped in an unsatisfying relationship and return to abusive partners.
L:therefore, this research confirms the predictions of the investment model theory for romantic relationships.