Investment model evaluation

RTS: Le and Agnew conducted a meta analysis of 52 studies with 11,000 participants. They found that satisfaction, comparison with alternatives and investment size all predicted relationship commitment, where commitment was greatest - relationships lasted longer. This was true across different cultures & in homosexual & heterosexual relationships. This strongly supports the model's claims about the factors contributing to commitment & about commitment being the most promising feature in successful long-term relationships & increases the reliability of the model.

High generalisability because they found that commitment was the most promising feature of a relationship - relationships lasted longer. Findings were diverse & true across different cultures, in both homosexual & heterosexual relationships. Suggests…