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STUDY: Opposites Don't Necessarily Attract

Posted: 07/09/11 11:20 AM ET

There are some human experiences that we fancy as too ethereal to study, like falling in love.

But when you think about it, poets, playwrights, musicians, philosophers and others have been ruminating for centuries on the psychological experience of attraction. So it really shouldn't come as a surprise that in the past several decades behavioral scientists have joined the mix. And some of what science has to tell us is at odds with our intuitions about love and attraction.

Consider the role of similarity. As the old saying goes, birds of a feather flock together. But we're also quite fond of the notion that opposites attract. So which one is it?

According to the data, more often than not, similarity rules the day. Sure, you have your sporadic James Carville-Mary Matalin pairings with a huge divergence in political ideology. And all of us know a couple in which the two individuals come from very different backgrounds, are of very different ages, or have very different interpersonal styles. Shoot, my marriage consists of a Yankees fan and a Red Sox fan, which in New England qualifies as an interfaith household.

But for the most part, we spend time among similar others and are drawn to people who are like us. Hardly an earthshattering conclusion (or topic for a blog post), right? Perhaps. But what is surprising is just how far-reaching these effects of similarity can be.

In fact, as I sat reading over lunch this month's issue of Personality and Social Psychology Bulletin -- I know, I know, it's a glamorous life -- within a 10-minute span I came across two separate demonstrations of how powerful similarity can be. Even when we don't realize it. And even when we simply think about similarity in superficial, physical terms.

The first paper, authored by researchers at Wilfrid Laurier University in Canada, examined how physical similarity predicts seating choices. It's a question that you sometimes hear asked with regard to race, as in "Why are all the Black kids sitting together in the cafeteria?". Never mind that the white kids do, too, but we don't seem nearly as concerned about it. It turns out that we gravitate toward similar others even on dimensions much less central to our identity than, say, ethnicity.

For example, in their first study, the Canadian researchers analyzed the seating arrangement of college students in a library computer lab. They made these observations several different times over the course of several different days. What they found is that students with glasses were significantly more likely to sit next to other students with glasses than random chance alone would predict. And students without glasses were more likely to sit with their spectacle-deprived brethren.

A second study found the same pattern by hair color. And in a third study, participants arrived to a psychology lab and were introduced to a partner who was already seated. Handed a chair, they were told to have a seat next to this partner, after which the research term surreptitiously measured how close to the partner's chair they put their own. A separate set of researchers then evaluated photographs of both the participant and the partner. Lo and behold, the more physically similar the two were judged to be, the closer to the partner the participants tended to place their chair.

Now sitting near someone is an indicator of attraction, sure, but it hardly qualifies as falling in love, as I suggested at the start of this post. But just a few minutes later, I came across another paper that addressed attraction of a more romantic and sexual nature by using activity logs from an online dating site.

This paper, authored by researchers at Berkeley, examined the "matching hypothesis," or the notion that we tend to select dating partners of similar desirability level to our own. Or, put more simply, the idea that we try to date people in our own league.

To test this, the researchers measured the popularity of over 3,000 heterosexual users of the dating site. They defined popularity as the number of opposite-sex individuals who had sent unsolicited messages to a user. Because this measure didn't include 1) messages sent in response to contact initiated by the user, or 2) subsequent messages sent during an ongoing exchange, there was no way for individuals to increase their own popularity count. Well, other than appearing more enticing in their original profile page, that is.

Analyses indicated that high-popularity users contacted other popular users at a rate greater than would be expected by chance. No real surprise, right? After all, who wouldn't want to reach out to the popular potential mates?

The less popular users of the site, that's who. Because users lower in popularity contacted other low-popularity users more often. A follow up study with over one million users produced a comparable result: people tend to select and be selected by others with similar levels of popularity. It would seem that when it comes to dating, most of the time we do indeed try to stick to "our own league."

So don't let anyone convince you that certain aspects of our human existence defy scientific study. Give me just one quick lunch break and I can provide them with evidence to the contrary. Or, as with so many other aspects of human nature, they can just find the right episode of "Seinfeld" to watch:

Sam Sommers is a social psychologist at Tufts University in Medford, MA. His first book, Situations Matter, will be published by Riverhead Books (Penguin) in December 2011. You can follow him on Facebook here and on Twitter here.

 
 
 

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There are some human experiences that we fancy as too ethereal to study, like falling in love. But when you think about it, poets, playwrights, musicians, philosophers and others have been ruminating...
There are some human experiences that we fancy as too ethereal to study, like falling in love. But when you think about it, poets, playwrights, musicians, philosophers and others have been ruminating...
 
 
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04:20 PM on 07/13/2011
This doesn't explain why (as a white guy) I was immediately attracted to my Asian wife. Genetic diversity is attractive.
AllyCat7
Snarks need not reply.
11:33 PM on 07/12/2011
This is too true. My current boyfriend and I are about 90% alike, which is why we fell in love so fast. The 10% difference helps to keep things interesting, too :)
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Steelsil
Warren/Grayson 2016! Yes We Can!
07:14 PM on 07/12/2011
This is all 'first sight' stuff.  I wonder how much it correlates with behavior after people really get to know one another.
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Natalie Jones123
05:55 PM on 07/11/2011
Does anyone else think it's funny that the word study is an all caps?
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juliana1217
03:26 PM on 07/11/2011
If you don't have a partner that likes some of the same things you do, then you don't have a partner to go out and do things with and go places with.
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01:23 PM on 07/11/2011
Who cares as long as you love one another! That's what matter to me!
11:17 AM on 07/13/2011
It matters in the long run. Once passion dies down, if there is no other shared interests or values, the more likely a couple is to break up. Better to wait and find that person with the similar/common values than hook up with someone simply because of chemistry or fear of being alone. I learned this the hard way. Better to be alone than in a bad relationship
12:56 PM on 07/11/2011
Whoever you are, you have a real flair for writing......enjoyed your post.......
10:30 AM on 07/11/2011
I have a wife who comes from a very different culture, has limited interests in many things I may obsess over but I love her spirit and her heart, Her differences in interests add excitement and fun to our lives while the knowledge of our same underlying values strengthens our marriage and is a riock I count on in difficult times.What is important is to have both some differrences coupled with basic underlying agreements whether initially or developed through experiencing the good and bad committed to each other,
09:04 AM on 07/11/2011
I suppose there is a residual tribal desire to bond with look-alikes, but in a global world where we apt to interact with so many people who look different, I have found that people " like me" are not always people who look like me at all. I am more interested in someone who signals in some way that they are original, energetic and people oriented. It comes across in voice, posture and the way someone moves before they even talk to you. As media and travel make the world smaller, I think the global village negates the "looks" idea more and makes us more sophisticated readers of other humans for more core similarities.
07:55 AM on 07/11/2011
I want someone similar to me so I don't have to explain myself all the time.... Would be nice...
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m4165
02:48 AM on 07/11/2011
into an icon for traditionalist views on gender essentialism and gender hierarchy would stop mining his earlier works for isolated proof-texts and instead read what he wrote at every stage of his life.

Mary Stewart Van Leeuwen is Professor of Psychology and Philosophy at Eastern University, St. Davids, Pennsylvania.

This essay originally was presented as the Tenth Annual Warren Rubel Lecture on Christianity and Higher Learning at Valparaiso University on 1 February 2007.
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m4165
02:54 AM on 07/11/2011
The Cresset

Bibliography

Evans, C. Stephen. Wisdom and Humanness in Psychology: Prospects for a Christian Approach. Grand Rapids: Baker, 1989.

Gray, John. Men Are From Mars, Women Are From Venus. New York: HarperCollins, 1992.

Hannay, Margaret. C. S. Lewis. New York: Frederick Ungar, 1981.

Henry, Carl F. H. God, Revelation, and Authority. Vol. V. Waco, Texas: Word, 1982.

Lewis, C. S. The Collected Letters of C. S. Lewis, Vol. III. Walter Hooper, ed. San Francisco:
HarperSanFrancisco, 2007.

_____. The Discarded Image: An Introduction to Medieval and Renaissance Literature. Cambridge: Cambridge University, 1964.
_____. The Collected Letters of C. S. Lewis, Vol. I: 1905–1931. Walter Hooper, ed. San Francisco:
HarperSanFrancisco, 2004a.

_____. The Collected Letters of C. S. Lewis, Vol. II: 1931–1949. Walter Hooper, ed. San Francisco:
HarperSanFrancisco, 2004b.

_____. “On Three Ways of Writing for Children,”[1952] Reprinted in Of Other Worlds: Essays and Stories, ed., Walter Hooper, 22–34. New York: Harcourt Brace Jovanovich, 1975.


_____. “Priestesses in the Church?” [1948]. Reprinted in God in the Dock: Essays on Theology and Ethics, ed. Walter Hooper, 234–39. Grand Rapids: Eerdmans, 1970a.

_____. “The Humanitarian Theory of Punishment,”[1954]. Reprinted in God in the Dock: Essays on Theology and Ethics, ed. Walter Hooper, 287–300. Grand Rapids: Eerdmans, 1970b.
_____. “Psychoanalysis and Literary Criticism,”[1942].
Reprinted in Selected Literary Essays, ed. Walter Hooper, 286–300. Cambridge: Cambridge University, 1969.

_____. [N. W. Clerk, pseudo.] A Grief Observed. London: Faber and Faber, 1961.

_____. The Four Loves. London: Geoffrey Bles, 1960.
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m4165
02:59 AM on 07/11/2011
_____. Surprised by Joy: The Shape of My Early Life. London: Collins, 1955.
_____. Mere Christianity. London: Collins, 1952.

_____. That Hideous Strength. London: John Lane the Bodley Head, 1945.

_____. The Abolition of Man. Oxford: Oxford University, 1943.
_____. A Preface to Paradise Lost. Oxford: Oxford University, 1942.

The Cresset

Perelandra. London: The Bodley Head, 1942.

Martin, Faith. “Mystical Masculinity: The New Question Facing Women,” Priscilla Papers, Vol. 12, No. 2 (Winter 1998), 6–12.
Reynolds, Barbara. Dorothy L. Sayers: Her Life and Soul. New York: St. Martins, 1993.

Sarna, Nahum M. Understanding Genesis: The Heritage of Biblical Israel. New York: Schocken, 1966.

Sayer, George. Jack: C. S. Lewis and His Times. San Francisco: Harper and Row, 1988.

Sayers, Dorothy L. “The Human-Not-Quite-Human,”[1946]. Reprinted in Dorothy L. Sayers, Are Women
Human?, 37–47. Downers Grove, Illinois: InterVarsity, 1975.

Sayers, Dorothy L. Gaudy Night. London: Victor Gollancz, 1935.

Sterk, Helen. “Gender and Relations and Narrative in a Reformed Church Setting.” In After Eden: Facing the Challenge of Gender Reconciliation, ed., Mary Stewart Van Leeuwen, 184–221. Grand Rapids:

Eerdmans, 1993.

Copyright © 2007 Valparaiso University Press www.valpo.edu/cresset
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m4165
12:04 AM on 07/11/2011
It's true and makes a lot of sense that people who are more similar and have more in common are drawn to each other even if it's subconciously and have better closer relationships because they have an emotional connection,and they don't have much conflicts to fight about.

Just one of many examples,my former dentist who retired and had 4 sons,was such a gentle quiet laid back person,and his wife who was his assistant was just the same as him.And a friend of my mother's since childhood told me that she raised a daughter and a son,and she never found they were that different,she said they had the same concerns,fears and basic needs growing up and she said she doesn't find this with her husband either,that they think or feel differently. She meant her second husband,because her first was a wife abusing pig that she thankfully divorced!
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snoskier
Life's short - love generously
10:32 PM on 07/10/2011
Interesting.
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banana republican
Next in line for crumbs from the King's Table
02:11 PM on 07/10/2011
I wonder if that photo is indicative of our future where pictures of couples will be cropped in the name of political correctness so that you won't be able to determine the sex of either of the partners? How far we've come!
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MNValley
Volens et Potens
01:26 PM on 07/10/2011
I believe "renting" is much cheaper than buying...