IB Psychology SL Topic 3 — Interpersonal Relationships Paper 1 & 2 Cognitive approach ~8 min read

The Matching Hypothesis: Do Likes Attract?

The theory says you quietly rate yourself, quietly rate everyone else, and go for someone on roughly your own level. Neat, tidy and slightly depressing. Then somebody checked what people actually do on dating sites, and the theory did not survive.

📚 What you need to know

The mental arithmetic

Nobody sits down with a calculator, but the theory says something like this happens anyway. You form a rough sense of how attractive you are. You form a rough sense of how attractive someone else is. If the two roughly match, you approach. If they do not, you hesitate.

Underneath it sits a calculation about risk. Approaching someone you think is far above you means a high chance of being turned down. Approaching someone you think is below you is safe, but you may not be happy. Most people, the theory says, drift towards the middle.

The balancing act at the heart of the theory Every choice trades risk of rejection against satisfaction Aim higher More attractive than you rate yourself High rejection riskAim level About the same as you rate yourself Lower risk, satisfyingAim lower Less attractive than you rate yourself Safe but less satisfyingThe theory predicts most people settle near the middle over time Repeated rejection lowers self-esteem, so expectations adjust downwards
Notice this is a claim about what people do, not what they want. Almost everyone would take the highest option if rejection carried no cost.
Keep the two halves of the theory separate in your head. One half is about self-assessment; the other is about risk. Most weak answers only describe the first half and miss why the second half is doing the real work.

Key study: Taylor et al. (2011)

This is the study students find confusing, because it is used as the main evidence and it does not support the theory. That is not a problem — it is the point.

Part of the studyWhat happened
AimTo test the matching hypothesis using real online dating behaviour rather than a laboratory task.
Participants60 heterosexual male and 60 heterosexual female profiles chosen at random from an online dating site. All were identified as ‘initiators’ — people who made first contact with other users.
ProcedureResearchers tracked the initiators’ real online activity, recording who replied (reciprocating contacts) and who did not (non-reciprocating contacts). Up to six photographs were collected for each initiator and each of their contacts, giving 966 photographs in total (527 female, 439 male). Independent raters, blind to the purpose, scored every photograph on a 7-point attractiveness scale from −3 to +3.
ResultsThe findings did not support the matching hypothesis. An initiator’s own attractiveness showed no correlation with the mean attractiveness of the people they contacted. Instead, initiators consistently approached people rated as more attractive than themselves.
ConclusionThe matching hypothesis cannot fully explain real-life attraction and partner choice, at least in online dating.
Where cognitive dissonance comes in. The initiators were holding two contradictory ideas at once: I am less attractive than they are, and I am approaching them anyway. The theory says that gap should stop people. In practice it did not.

Evaluating the theory

What is strong about it

What is weaker about it

Link to concepts

EXAM PRACTICE

Evaluate the matching hypothesis as an explanation of attraction. [22]

Step 1: state the hypothesis Walster (1966): people choose partners of similar physical attractiveness to themselves, via self-assessment and comparison. Step 2: explain the mechanism A balancing act. Aiming higher risks rejection; repeated rejection damages self-esteem; expectations settle at what feels attainable. Step 3: the evidence Taylor et al. (2011). 120 profiles, 966 photographs, blind raters on a 7-point scale. Step 4: the result and what it means No correlation between an initiator’s attractiveness and that of their contacts — and they consistently aimed higher. The evidence contradicts the theory. Step 5: weigh it up Small sample weakens Taylor; but the theory itself is reductionist, ignores non-physical factors, and rests on a subjective variable. Theory + mechanism + contradicting evidence + evaluation of both Say clearly that the study fails to support the theory. Pretending it supports it costs marks.

💡 Exam tip

⚠ Common mix-up

Up next: Self-Disclosure and Growing Closer — what actually turns two people who fancy each other into two people in a relationship.

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