How People Define Infidelity
My pals, evolutionary psychologists Daniel J. Kruger, Maryanne L. Fisher, Sarah L. Strout, and three of their colleagues just published a study in the open-source journal Evolutionary Psychology on what people consider cheating. It's titled "Was that Cheating? Perceptions Vary by Sex, Attachment Anxiety, and Behavior."
(By the way, I'm working on a question for my column from a guy who claims to think it's cheating when his wife has a male doctor perform a test on her.)
There's a writeup in the HuffPost that lays out a few of their findings, based on a survey given to 456 students in intro psych courses at two different universities, in which they were asked to rate 27 different behaviors on a scale from 1 to 100 in terms of what was cheating. (Zero is no cheating at all.):
Not surprisingly, sexual intercourse was given an average of 97.7 on the scale, and oral sex followed closely behind with 96.8. Below, some other interesting findings:•Kissing on the lips: 88.7
•E-mailing pictures of themselves naked: 88.2
•Texting erotic messages: 82.6
•Sleeping in the same bed: 68.4
•Holding hands: 63.2
•Forming a deep emotional bond: 52.4
•Sitting in lap: 52.2
•Going out to dinner: 41.4
•Sharing secrets: 36.5
•Hugging for more than 10 seconds: 34.5Researchers also looked at how the person's level of relationship insecurity factored into how they viewed certain cheating behaviors. Those who were not secure in their relationships, also known as attachment anxious, tended to consider social behaviors more indicative of cheating. Those who were trying to avoid a committed relationship, known as attachment avoidant, tended to rate sexual and erotic behaviors as being less indicative of infidelity.
About those attachement-anxious partners, the researchers write:
Anxious individuals tend to overestimate relationship threats and underestimate their partner's commitment to the existing relationship (Collins, 1996). In ambiguous situations, anxious individuals are more likely to perceive partners as insensitive and to suspect relationship problems that may or may not exist....Those with greater sensitivity to relationship threats may be more likely to identify ambiguous behaviors as cheating.
Listen to my radio shows about adult attachment with neuroscientist Dr. Amir Levine and Canadian psychologist Dr. Sue Johnson.
"Secure attachment" isn't just for kids -- it can save or vastly improve your relationship, and you can change or moderate your style of attachment if you understand what it is.








I say we need some discussion on that nine-tenths of a percent between oral and fucking. What are their lives like?
Crid [CridComment at gmail] at February 25, 2013 6:22 AM
I recently updated my own "rule of thumb" definition. "If any part of HIS anatomy goes into any part of YOUR anatomy."
Lamont Cranston at February 25, 2013 6:47 AM
That list was incomplete, they forgot to add "getting a pap smear from a male doctor" as a category!
Sheep mommy at February 25, 2013 6:48 AM
Amy Alkon
https://www.advicegoddess.com/archives/2013/02/how-people-defi.html#comment-3623602">comment from Sheep mommyYeah, Sheep mommy, because those cold instruments, that scraping, and that autopsy-like lighting is such a turn on, as is the bored nurse looking on. In fact, it's almost a threesome!
Amy Alkon
at February 25, 2013 6:51 AM
Psych students aren't what I'd consider a reprenetative sample of people. The ones I've met tended to be way more broken than normal, but are the ones judging what normal was.
Aside from that, "Is it cheating?" is more of a yes no question, rather than a 0-100 scale. So people need to realize this when looking over these values. it is not that 34% think holding hands is cheating. but that on average these students gave it a score of 34%
Joe J at February 25, 2013 6:55 AM
I agree with most of them, except the secrets. If you have friends of the opposite sex, I can see how telling them things you wouldn't necessarily tell your SO could be therapeutic, and give you the SO's perspective. Also, they are a great source of information in your SO. If your SO is secure, and you make an effort to be transparent when asked, there shouldn't be a problem. Also, what about my gay friends? Do I have to stop telling them secrets, as they are men?
As for sleeping in the same bed constituting cheating, then I can count several occasions where I have been unfaithful, only because I and my opposite sex friend had had a little too much to drink, and fell asleep on the couch. So do I need a scarlet letter now? (My husband thought it was hysterical, even though my male BF is very clearly not gay, and duck taped us together....)
"The ones I've met tended to be way more broken than normal, but are the ones judging what normal was."
I think that's because broken people (of which I would consider myself one) are more driven to find out what motivates different sorts of behaviors. An effort to qualify the pain, it you will.
wtf at February 25, 2013 7:09 AM
Amy Alkon
https://www.advicegoddess.com/archives/2013/02/how-people-defi.html#comment-3623630">comment from Joe JUm, I have my complaints with using university students as a sample, but this is "Intro to Psych," a general liberal arts course.
Amy Alkon
at February 25, 2013 7:17 AM
yeah... I'm with Joe, in that extrapolating from college students to the general adult population is a crock of bullsh*t.
They know a lot of things, but experience be lacking.
Additionally there is stuff in the list that makes little sense, and IMPORTANTLY, most of this stuff that isn't sex is actually innocuous if it only happens once...
It isn't cheating when a girl plops down in your lap when she's drunk... it's how long do you take to dump her off, AND are you trying to fend her off...
that being said... to someone with such an attachment anxiety... having a female co-worker can bring accusations, having a cute waitress do her job can bring frowns...
They will look at ANY interaction as a potential problem.
...and the more you accommodate that behavior, the worse it gets.
SwissArmyD at February 25, 2013 7:25 AM
Would I do ____ with another woman if my wife were with us?
Aaron Dyer at February 25, 2013 7:39 AM
If people would make more of an effort to try to understand that jealousy is a manifestation of your own insecurities, then perhaps the attachment anxiety would abate somewhat, for some people. Maybe not. Just sayin'.
Flynne at February 25, 2013 7:46 AM
@Crid: "I say we need some discussion on that nine-tenths of a percent between oral and fucking. What are their lives like?"
These are probably the folks who didn't roll their eyes and go "Yeah, right," when listening to Bill Clinton's excuse-making regarding Miss Lewinski.
About the experimental sample: I agree that college students alone might not be the best sample population, but maybe it's a place to start. With a broader sample, it might be possible to see how the measurements vary with age, marital status, length of marriage, etc. I'd suspect that the percentages of the most highly-rated behaviors wouldn't change much with a broader sample, but some of the lower rated behaviors might be seen as even less important.
Old RPM Daddy (OldRPMDaddy at GMail dot com) at February 25, 2013 8:17 AM
> These are probably the folks who didn't roll their
> eyes and go "Yeah, right," when listening to
> Bill Clinton's excuse-making regarding
> Miss Lewinski.
They say an ocean's worth of ophthalmologists bought yachts that year.
Crid [CridComment at gmail] at February 25, 2013 9:14 AM
I'm cracking up here! I was thinking about the "sleeping in the same bed" thing and my sleep-deprived brain just did all sorts of gymnastics.
First there was the time I shared a hotel bed with Grandma, then there was sharing a hotel bed w/ a friend on a class trip, and THEN I thought about the cat that sleeps on the bed...
I know that's not what they meant, but they left that one WIIIIIIDE open.
Shannon M. Howell at February 25, 2013 10:02 AM
Going out for dinner? Geeze, I've had hundreds of meals with people I'm not married to.
KateC at February 25, 2013 10:04 AM
If you wouldn't do it front of your spouse, it's cheating.
Troy at February 25, 2013 10:15 AM
Going out for dinner? Geeze, I've had hundreds of meals with people I'm not married to.
Yeah, I'm in a male-dominated profession and if I restricted myself when I'm on travel to women only I'd be eating by myself a lot.
Astra at February 25, 2013 10:31 AM
worked in rock'n'roll for a lot of years. out on the road i walked in on two members of the opening band having a heated discussion as to whether anal was cheating. their consensus: no vaginal penetration, no cheating.
i'm thinking, yeah, let's get your wives on the phone and see if they agree.
that said, many wives/gf's did operate under the "blow jobs ok" agreement for their guys out on the road.
rosalind at February 25, 2013 11:16 AM
> If you wouldn't do it front of your spouse,
> it's cheating.
✔
Crid [CridComment at gmail] at February 25, 2013 1:51 PM
Amy Alkon
https://www.advicegoddess.com/archives/2013/02/how-people-defi.html#comment-3624007">comment from KateCGoing out for dinner? Geeze, I've had hundreds of meals with people I'm not married to.
KateC, have we been having an affair without our knowledge?
Amy Alkon
at February 25, 2013 2:06 PM
I say we need some discussion on that nine-tenths of a percent between oral and fucking. What are their lives like?
I just snorted lentil soup. A deeply unpleasant experience.
MonicaP at February 25, 2013 2:11 PM
"we need some discussion on that nine-tenths of a percent between oral and fucking. What are their lives like?"
Taint what they're cracked up to be, no doubt.
Gog_Magog_Carpet_Reclaimers at February 25, 2013 3:06 PM
I don't know about anybody else, but when I'm in a committed relationship, I somehow have always brought up my tie to my lady somehow.
I have always found that an hour roll in the hay with some bint is less satisfactory than being with someone I care about.
Jim P. at February 25, 2013 7:57 PM
Yer neckwear is your own beeswax.
Crid [CridComment at gmail] at February 26, 2013 1:40 AM
"KateC, have we been having an affair without our knowledge?"
It was rape! Rape, I tell ya!
Cousin Dave at February 26, 2013 7:11 AM
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