Interpersonal Attraction - Similarity (like-attracts-like)

Similarity (like-attracts-like)

The notion of "birds of a feather flock together" points out that similarity is a crucial determinant of interpersonal attraction. Studies about attraction indicate that people are strongly attracted to look-a-likes in physical and social appearance ("like attracts like"). This similarity is in the broadest sense: similarity in bone-structure, characteristics, life goals, ethnicity and appearance. The more these points match, the happier people are in a relationship (Folkes, 1982, Wilson et al., 2006).

The lookalike effect plays an important role called self-affirmation. A person typically enjoys receiving confirmation of every aspect of his or her life, ideas, attitudes and personal characteristics and it seems that people are looking for an image of themselves to spend their life with. One of the basic principles of interpersonal attraction is the rule of similarity: similarity is attractive. It is this underlying principle that applies to both friendships and romantic relationships. There is a high correlation between the proportion of attitudes shared, and the degree of interpersonal attraction. Cheerful people like to be around other cheerful people and negative people would rather be around other negative people (Locke & Horowitz, 1990).

According to Morry’s attraction-similarity model (2007), there is a lay belief that people with actual similarity produce initial attraction. Perceived similarity develops for someone to rate others as similar to themselves in on-going relationship. Such perception is either self-serving (friendship) or relationship-serving (romantic relationship). Newcomb (1963) pointed out that people tend to change perceived similarity to obtain balance in a relationship. Additionally, perceived similarity was found to be greater than actual similarity in predicting interpersonal attraction. A 2004 study, based on indirect evidence, concluded that humans choose mates based partly on facial resemblance to themselves.