MovieChat Forums > The Five-Year Engagement (2012) Discussion > Slight flaw in the logic of the doughnut...

Slight flaw in the logic of the doughnut experiment.


Wondering if anybody else thought of this... If you ask me, there was a slight flaw in the logic of the doughnut experiment. (And I'm not just talking about what Tom points out later in the movie.)

In the marshmallow experiment with the children, the kids were given a marshmallow and told they were free to eat it, but if they waited 20 minutes without eating it, the guy would come back and give them a second marshmallow.

However, with the doughnut experiment with the adults... all the every told them was that the doughnuts in the room were stale, but somebody would come replace them with fresh doughnuts in 20 minutes.

...Nobody said to the adults "IF you do not take any of the stale doughnuts, we will replace them in 20 minutes with fresh doughnuts." There was no consequences for taking the stale doughnuts. So, first off, some people may simply have not taken the stale doughnuts because they don't want to eat stale doughnuts, not due to any patience or whatever.

But, more importantly...

What if somebody thought "Hmm...they are probably going to throw the stale doughnuts out anyway. If I eat a stale one now, I can also have a fresh one when they come back." Heck, for that matter, my personal thought process may have been something along the lines of "You know, they will probably just throw these doughnuts out. Plus, I bet the stale doughnuts aren't that bad. If I eat a stale one now, I can take a fresh one for the road to save for later."

So, if you ask me, the experiment was flawed. The children's experiment was very simple. They were told that they could eat the marshmallow, but would get two if they did not eat it until he got back. They were given a potential reward that they would only get if they exercised patience. This was not properly re-created with the adults.

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the adult one had to be slightly more complex because ... we're adults. the idea is that we have a different reasoning process and also perhaps a little more restraint. The idea for the donut experiment is that an adult can reason more easily that 20 minutes isn't that long to wait for a better product (so better, not just another of the same), but their state of mind would suggest that their standards are slightly lowered by a more negative mood.
the experiment makes sense to me, and my psychology student friends who i saw the film with

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I'm a psych student and it does make sense. A kid's way of thinking is concrete (up to a certain age) meaning that if you tell them something, its just that. Time at that age its still considered an abstract construct so, 20 minutes is misconstrued as an eternity (remember when they gave you $1 and you thought you were rich?--same principle).

If you want to determine the lack of impulse control in an adult, u cant tell them they'll get a better thing in a short amount of time, because they'll wait. The point was to see who had the impulse to eat something bad, just because they could. That's the way vices work--do something potentially bad, just because they can and they think they can control themselves.



"Love is nature's satanic trick to make us reproduce"

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I still can't agree. See, you both are dancing around exactly what I was trying to say. The thought process behind this experimint is testing lack of impulse control in adults. Or, as you put it...

The point was to see who had the impulse to eat something bad, just because they could. That's the way vices work--do something potentially bad, just because they can and they think they can control themselves.


See, that is my exact problem. Nobody said it was bad. Like I said, where is there harm in eating one of the stale doughnuts because you figure you could then also have a fresh doughnut?

In other words, in this experiment, they are counting on some people having the thought process of "I can't wait, I just want a doughnut now." I'm trying to say, what if that is not the thought process? They can't read people's minds. As I illustrated, what if somebody is thinking "I can have a stale doughnut now... I'll bet there not all that bad... and then I can save a fresh one for later."

Not to mention, what if they were thinking "Well... I can try the stale doughnut now, and if it is not good, I don't have to finish it. I can just chuck it and wait for the fresh ones."

I just think the experiment is ignoring too many possible variables. A better experiment may have been to set up the doughnuts and say something like "Oh, and I'm sorry for the confusion, but these doughnuts are meant for a party. Please don't eat any," then leave the people alone and see if any of them eat anyway.

See, this instantly came to my mind, because I'm actually the type of person who could patiently wait hours for the fresh doughnuts if I had to, but may actually think it through in a way I've illustrated above. Would kind of depend on the day. So, were I to take a stale doughnut, my thought process would not be that I can't wait, but simply why let the stale doughnuts go to waste when they are probably not that bad, and then I could take a fresh one for later.

I don't know. Maybe it is just me. But, it seems like they are trying to pigeonhole people into two buckets when people are a lot more complex than that.

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The mere fact that somebody would decide to eat a stale doughnut JUST because, means that this person can't help cravings and/or temptations.



"Love is nature's satanic trick to make us reproduce"

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Again, I cannot agree with you at all. First off, have you ever had a "stale" doughnut? Unless we are talking REALLY stale, they can still be pretty good. Mind you, I don't make a habbit to eat stale doughnuts, but say I bought a box of doughnuts, and there is still one left after a few days, I'm not going to just throw it out if it is still good.

Does that necessarily mean I had a doughnut craving I couldn't ignore? Nope. Maybe I just had the doughnut left over and thought I shouldn't let it go to waste.

As far as the experiment, again, what you've said is still ignoring the logic I have explained. After all, if it were the fact that the person had a doughnut craving, then they could just wait for the fresh doughnut. Not to mention, your logic is still completely ignoring everything I've said. The logic I illustrated that somebody may use when deciding to take a stale doughnut has NOTHING to do with them being unable to control themselves, but is more so that they are actually logically thinking it out beyond what they seemed to expect in this experiment.

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I don't remember exactly if it was explained to the adults that they would get fresh doughnuts. But, I wouldn't eat stale doughnuts, I wouldn't have the urge to do so. The experiment CAN prove that somebody lacks impulse control because he/she can't help themselves to the bad doughnut. Are they really that hungry? Can't they really wait until they get a better thing? Or are they eating the doughnut because they just can....

I'm not ignoring your logic. I'm just saying that ppl tend to grab whats in front of them just because it is in front of them.



"Love is nature's satanic trick to make us reproduce"

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I'm just saying that ppl tend to grab whats in front of them just because it is in front of them.

Agreed. Definitely. I think that is exactly what the experiment is trying to prove as well. For the record, they did tell the adults that fresh doughnuts would be coming.

I don't know. Maybe the problem is I don't think like most people. LOL! That is entirely possible. Maybe the vast majority of the people wouldn't put that kind of thought process into it like I might. Still, if it occurred to me literally the second she thought up her experiment, I gotta figure it occurred to others as well.

After all, like I said... were I in the same situation, I could VERY EASILY avoid the stale doughnuts and what for the fresh ones. I would have no problem with that whatsoever. But, I may think it through a little more in depth than just black and white and think "Well... if the stale doughnuts aren't all THAT stale now, I could have one now and save a fresh one for later." So, again, it's not like I couldn't control my impulses. More so, I didn't want to see a perfectly good doughnut go to waste, especially when I would assume there is no reason I couldn't take a fresh one as well. It wouldn't hurt anybody, and they were being brought in for the group anyway.

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i think the missing point here is that the experiment wasn't just about impulse control, and the donut was an analogy for how a person considers their life. The results finding that people in a personally poor state of mind were more likely to eat the stale donuts, rather than waiting may suggest that they had an 'i don't care about the quality of what i get because my life is of poor quality' attitude (and please not that i said 'may suggest').
Fair play if you would eat a slightly stale donut, but the experiment works on a different level because there is the option for fresh ones too and you don't have to do anything but wait a few moments. If you were at home and had slightly stale ones and no fresh ones around you would eat the slightly stale ones rather than go out for new ones because that is too much hassle. But if all you have to do is wait a few minutes but you don't, it suggests a lack of caring, a sort of giving up.

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But if all you have to do is wait a few minutes but you don't, it suggests a lack of caring, a sort of giving up.

Right on.

"Love is nature's satanic trick to make us reproduce"

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But if all you have to do is wait a few minutes but you don't, it suggests a lack of caring, a sort of giving up.

I definitely understand what you mean. As I said, I think that is what the experiment was meant to be testing. And again... maybe the problem here is I don't think like normal people. LOL! But, again, I illustrated one way a person could take one of the stale doughnuts, and it has nothing to do with them "giving up," or having a "lack of caring." It is because they thought it through a little more and figured, to borrow a lame cliche, they could have their cake and eat it too. In other words, they could have one of the stale doughnuts (assuming that weren't truly THAT stale) and then have a fresh one for later as well. Especially considering the stale ones were probably going to be thrown out anyway. Why let them all go to waste?

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To me what's bad is wasting food, though. They're going to bring fresh donuts and maybe end up throwing the others out? I'd elect to eat one of the "stale" donuts instead, so that they don't get wasted. Of course, it would depend on just how stale they are, but as long as they're not hard as a rock or something, I'd eat the older donut instead. I hate seeing people waste things in general, and I'd probably say something to the person running the experiment about it--"If they're so old that they're inedible, you should have thrown them out already, but if they're fine but just not brand new, you shouldn't waste them/waste the money. Let folks finish those before you get new ones."

So framed on my way of thinking about it, it's rather an experiment regarding who doesn't like wasting things versus who doesn't mind wasting stuff that's perfectly fine but just not brand new in favor of something newer (and for other things, more "shiny", maybe more trendy, etc.)


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The doughnut experiment was a metaphor for their relationship. They had a really good thing in front of them but kept waiting for the ideal situation. The ideal situation may never come. That was the gist of Segal's rant at the end and the lesson they learned.

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The doughnut experiment was a metaphor for their relationship. They had a really good thing in front of them but kept waiting for the ideal situation. The ideal situation may never come. That was the gist of Segal's rant at the end and the lesson they learned.

That is a good point too. The supposed experiment also ignores this potential thought process. Again, what if somebody's thought process, instead of being "I can't wait" was "These doughnuts are probably perfectly fine, so why wait for doughnuts that may not even actually come?"

Hell, for that matter, since you'd assume the stale doughnuts were going to be thrown out, what is the harm in having one? If you take a bite, and it is truly awfully stale... throw it out and wait for the fresh ones. No big deal. I just think there is way too much the experiment didn't anticipate. Then again, we are talking about a bit in a romantic comedy, not a real experiment, so it probably isn't like they really thought it through that in depth. LOL!

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if there were a like button i would LIKE this, I would like it all over the place

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here's a few flaw with the experiment

1)what if you just ate a great meal, wouldn't that make waiting for a fresh donut easier...

2) suppose you aren't a fan of donuts, like myself? then you wouldn't even care for fresh or old ones.

3) suppose you forgot to eat that morning and hunger was killing you?

4) suppose your mouth felt dry and your breath felt hot? i'm sure you would have freshen up on some stale bagels


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Hey

i think you're missing a big point of the doughnut exp: it wasn't suppose to be a good experiment

her professor only agreed to it because he was trying to win her over, remember at the end when she asked if he would have agreed to the exp if it was suggested by someone else; he said no. This means he liked her from the start and he was always trying to "woo" her.

eating stale doughnut, is not a good mark up that you're emotional scared (or whatever her conclusion was), there are a lot of reasons to eat them, say you're hungry(haven't eating all day), or u hate wasting edible food (which is my case), or some ppl just like to eat during movies (thus selling pop corn, nachos, candy... at the movies)...etc


Fuzzy Wuzzy Was a Woman

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Actually,

You make a very good point that had not occurred to me. It probably didn't matter if the experiment was flawed, it was just a ploy by the professor to get closer to her. I mean, I think it still had to have some merit. I don't think he'd have done it were it completely terrible. Still, you are right.

Plus, you illustrate a lot of what I was thinking too. Not to mention, it's funny you mention hating to waste perfectly edible food. I'm actually exactly the same way. LOL! Granted, I don't go crazy. I'm don't eat spoiled, rotten, or moldy stuff because I don't want it to be wasted. LOL!

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Yes the experiment in the movie is flawed. There have been numerous studies involving immediate and delayed gratification (reinforcement). See studies by Mazur, Kacelnik, and Biondi who give great insight into behavioural psychology. The most popular study involved the proposition of $20 now, or $100 at a later specified date. Most people will take the $20 now. The donut experiment is flawed; people weren’t forced to choose stale or new donuts, but could choose to eat both if they wished. This isn’t a controlled independent variable, and makes the experiment unreliable.

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Maybe the implication would be that if you ate the stale donuts, you would be too full for the fresh ones. If this was the implication in the movie, it doesn't seem to have served its purpose, as nobody else has brought it up.

Another wrinkle to the experiment:

Would the second marshmellow or fresh doughnut come as the experiment was ending? In this case, it would be rational to take the donut or marshmellow early in the experiment, as it would give the person something to do, and something to fill them up as they're waiting for it to end. Once it's over, they can have all the marshmellows and doughnuts that they want, so an extra or fresh one would have little value. It would be better to say "this experiment is 40 minutes, if you don't eat this marshmellow after 20 minutes, you'll get two, if you eat it within the first 20 minutes, you won't get anymore."

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They explained this (slightly) in the film.

While they were brainstorming ideas of how to re-create this experiment on adults Vaneetha said something along the lines of, "We can't tell them to wait 20 minutes and they'll get two, they'll all wait the 20 minutes." (I know this isn't an exact quote but the idea is the same)

The adult experiment could not be as simple as the children's experiment because adults are more complicated. Twenty minutes to a child feels like a lifetime. Especially when they have something they know they can take if they want it right in front of them. But to an adult the decision is clear. Twenty minutes is not that long of a time to get more of what you want.

What I took from the adult experiment was that it was not so much about having patience. But exercising impulse control and what a lack of impulse control says about your character.

I studied psychology only briefly because I could not believe how boring it was. But the experiment still made sense to me.

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The donut experiment was a shaky plot device from the start. It was obviously a metaphor for the nature of waiting for the perfect relationship rather than enjoying what you have right now. But why? Why would that be a valid sociology experiment? It doesn't really prove anything about human nature, it just proves that people like donuts enough to eat a stale one rather than needing it to be perfectly fresh.

Furthermore the marshmallow experiment doesn't prove anything either. What; kids are impulsive? They like marshmallows and have a hard time restraining themselves? Wow. Brilliant sociology work.

There needed to be some measure of detriment to the initial take in the experiment that quantified the results. Something more like, "we have these plain donuts here for you guys, we were going to get an assortment but wanted to see if people ate these."

That way you could tell if people like plain donuts or not.

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These sorts of experiments, while interesting, are far from conclusive. There are far too many variables and factors that can go into it, as the OP has perfectly reasoned.

I can think of several reasons to eat, or not to eat them that have nothing to do with me settling for lousy donuts.

Firstly, most people's tolerance for "stale" food is pretty low. Donuts especially are perfectly good for 2 or 3 days or more past prime. A lot depends on the appearance of the donuts. If they are scary looking, I wouldn't eat them, but if they look perfectly fine, then in my mind they are just as good as the promised "fresh" donuts.

Other questions I might wonder, are the donuts the same, are the future "fresh" donuts gonna have the same variety? Perhaps I can see what I like in the box of stale donuts. Just because they promised a box of new donuts, does not mean I will like those donuts better. If I know what I like, and I see it in the box of old donuts. I may go for it, so I can ensure I get the donut I want.

For me, for this experiment to work, the old donuts have to be very old. Dried out and hard, broken to pieces, and of a boring variety. Plain old donut. Essentially, the old donuts have to be especially inferior in a clear quantifiable way. Simple day old donuts won't prove a thing.

For this experiment to work, I would think the donuts have to be clearly bad. Obviously inferior. That way, if someone opts to eat one knowing superior donuts are on the way, then you see someone settling for something obviously inferior.

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I don't think that quality of the donuts matters, what matters is that they establish a clear connection between the act of eating the stale donuts, and not getting fresh ones in the future. If they get the fresh donuts either way, they're basically calling people impulsive simply for having the "audacity" of eating "stale" donuts instead of looking at them and starving.

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The expe riment sucked from the start, the professor wanted to get laid

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It was obviously a metaphor for the nature of waiting for the perfect relationship rather than enjoying what you have right now.
Yeah, that was obviously the dramatic/artistic point of it, in addition to emphasizing that Winton was simply trying to butter-up Violet.


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They should have used "cookies" instead of "doughnuts" to tie into the actually well done metaphor used when Violet is talking to her sister in the Sesame Street voices.

I'm sorry I don't speak computer-ebonics, please type in English.

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My problem is that I would've asked what kind of doughnut. Since it looked plain I wouldn't eat either of them. Some people are particular like that.

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This was pulled from an actual experiment (as well as the numerous reproduced studies of the same measure or of something similar).
http://en.wikipedia.org/wiki/Stanford_marshmallow_experiment

As with most social psychology experiments (and any psychology study that utilizes behaviorist methodologies) it is riddled with flaws and hasty generalizations based on ridiculous assumptions (such as the one made in this film about impulse control being so cut-and-dry determined by eating a stale doughnut). The most that could be "determined" from the results is that it is merely interesting.

As far as the character of Winton is concerned, he was a piss-poor depiction of a research psychologist/psychology professor. But, no surprise there as movies and television always screw up psychology/psychologists.

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From my POV, I don't see it as a valid experiment to test for either impulse control or patience. In my case, I would never touch the stale doughnuts even if I knew they won't be replaced. This is simply because of the way I was raised and to be frank I've been spoilt. But if I was very hungry then I would've ate it rather than waiting for 20 mins.

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The experiment is typical academic hooey. If someone takes one of the day old doughnuts, all it means is that he isn't particular about the freshness of doughnuts. That's all there is to it. It has nothing to do with impulse control.

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