Syllabus Edition
First teaching 2025
First exams 2027
The Matching Hypothesis & Relationships (DP IB Psychology): Revision Note
The matching hypothesis
The matching hypothesis proposes that people tend to choose partners who are of a similar level of physical attractiveness to themselves (Walster, 1966)
Cognitive mechanism
It is a cognitive process involving self-assessment and the assessment of others based on physical appearance.
For example, someone who rates themselves as moderately attractive may look for a partner they consider to be at a similar level
Self-worth & social status
If a partner is perceived as less attractive, this may reduce an individual’s social status.
If a partner is perceived as more attractive, this may increase social status.
These outcomes can influence how individuals evaluate themselves in terms of worthiness or desirability
Decision-making & risks
There is a fine balancing act involved in the matching hypothesis
Individuals weigh the risk of pursuing partners they perceive as more attractive than themselves
Aiming higher carries a greater risk of rejection
Choosing partners considered less attractive may reduce rejection risk but may not be fully satisfying
Repeated rejection can negatively affect self-esteem
Over time, individuals often adjust their expectations towards partners they believe are realistically attainable
Research which supports the matching hypothesis
Taylor et al. (2011)
Aim
To investigate the matching hypothesis using real-life online dating behaviour
Participants
60 heterosexual male and 60 heterosexual female profiles from an online dating site
The profiles were chosen at random
All participants were identified as ‘initiators’, meaning that they initiated contact with other users
Procedure
Researchers tracked the real-life online activity of the initiators
Records were kept of who responded (reciprocating contacts) and who did not (non-reciprocating contacts)
Up to six profile photographs were collected for each initiator, as well as for their reciprocating and non-reciprocating contacts
In total, 966 photographs were collected (527 female, 439 male)
Independent ('blind') researchers rated all photographs using a 7-point attractiveness scale (−3 to +3)
Calculations were based on:
the mean attractiveness rating of each initiator
the mean rating of all contacts chosen by each initiator
separate ratings for reciprocating vs non-reciprocating contacts
Results
The findings did not support the matching hypothesis:
The initiators’ physical attractiveness showed no correlation with the mean attractiveness of the people they contacted
Initiators consistently contacted people rated as more attractive than themselves
This pattern demonstrates cognitive dissonance (holding two contradictory ideas: 'I am less attractive than they are, but I am choosing them anyway')
Conclusion:
The study suggests that the matching hypothesis cannot fully account for real-life attraction and partner choice in online dating contexts
Evaluation of the matching hypothesis
Strengths
Equally-attractive couples do exist in the real world, which lends anecdotal evidence to the theory
The theory highlights the ways in which cognitions may determine partner preference and aligns with humans’ ability to engage in higher-level thinking
Limitations
Taylor's sample size is small which means that the data is likely to lack robustness
This in turn decreases the reliability of the findings
The theory is highly simplistic and reductionist as it attempts to quantify the complex nature of human attraction to a basic balancing act, e.g., ‘I am a 5 so I seek a 5’
Link to concepts
Causality
Notions of ‘what is attractive?’ are highly subjective and prone to individual differences, which means that the theory lacks scientific validity
Attraction does not lend itself easily to experimental/scientific testing and is probably best suited to qualitative research
Responsibility
Research which focuses on the physical attractiveness of people should be treated with delicacy and care by researchers
If participants are aware of how they have been rated, this could cause them some embarrassment or distress (if the rating is lower than they expected)
There is also the issue of anonymity to consider
It would have been vital for Taylor and colleagues to ensure that the photos of online dating site users were not published nor any clue given as to whose photos had been used in the research
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