“Just wait a minute.” It’s probably the most-said sentence in any house with a three year old, and it almost never works.
Not because your child is testing you. Because two separate things are missing, and neither of them is patience.
A minute isn’t a real unit yet
The first problem is that “a minute” doesn’t refer to anything. Children’s sense of duration develops gradually across the preschool and early school years, and young children’s judgments of how long something lasted are both less accurate and far more variable than adults’ (Droit-Volet, 2013).
So when you say a minute, and then it’s nine minutes because you’re on the phone, nothing has been broken from their side. There was no minute. There was just an adult saying a word and then being unavailable for an unknown stretch.
Which leads straight to the second problem, and this is the one I find genuinely interesting.
The marshmallow study, and what happened to it
You know this one. A child is left with a marshmallow and told they can have two if they don’t eat it. The original work reported that how long preschoolers held out predicted things about them years later (Mischel et al., 1989), and for about thirty years that got told as a story about willpower being a fixed trait you either have or don’t.
Two later studies took most of that apart, and both of them are more useful to a parent than the original.
1. The prediction mostly wasn’t about willpower
A conceptual replication used a much larger and more varied sample than the original, which had been small and drawn from a single university preschool. The link between waiting at age four and achievement at fifteen was still there, but it came out at half the size of the original, and adding controls for family background, early cognitive ability and the home environment cut it by another two thirds. The links to behavior at fifteen were smaller again and mostly not statistically significant (Watts et al., 2018).
So the waiting hadn’t caused the outcomes. It was largely a marker of circumstances that were causing both.
One more thing from that paper is worth having. Most of the variation in later achievement came from whether a child could wait at least twenty seconds. Not from the heroic seven minute waiters. Twenty seconds. Whatever this is measuring, it isn’t stamina.
2. Waiting is a judgment about you
This is the finding I’d hand to every parent. Before the marshmallow task, researchers gave children one of two experiences with an adult. In one, the adult promised better art supplies and came back with them. In the other, the adult promised and then came back apologizing, empty-handed.
Then the same marshmallow task. The children who’d had the reliable adult waited significantly longer than the children who’d had the unreliable one (Kidd et al., 2013). Twenty-eight children, average age four and a half. It’s a small study, so hold it loosely. The direction is the point.
Waiting isn’t only self-control. It’s partly a bet on whether the thing you’re waiting for is going to arrive. A child who has learned that “in a minute” often means “no” is making a rational call, not a badly behaved one.
What actually helps in the moment
The old work has one more thing in it that survives well. Mischel and Baker found that what children did with their attention during the wait mattered a great deal. Children encouraged to think about the treat itself, how sweet and chewy it was, gave up sooner. Children who thought about it in some other way, or turned their attention elsewhere entirely, lasted longer (Mischel & Baker, 1975).
So the skill on offer isn’t gritting your teeth. It’s having something else to do. That’s teachable, and it’s the bit most “be patient” advice skips straight past.
Three swaps
Give the wait an edge they can perceive
Not a minute. Something with a sensory ending.
- “When this song finishes.”
- “When I’ve put these five things away.” Then count them out loud as you go.
- A sand timer they can watch. The watching is half of it.
Hand them a job
An empty wait is much harder than an occupied one. “Count how many red cars go past while I finish this” is doing exactly what the attention research points at, and it has the useful side effect of making the wait measurable to them.
Then arrive when you said
This is the one that costs something. If the song ends, stop and come. If you can’t, don’t use the song.
Every wait you honor is a deposit, and the reliability finding says the deposits are what you’re spending later. Which also means it’s better to promise a longer wait you’ll keep than a short one you won’t. “After lunch” that happens beats “two minutes” that turns into twenty.
Why counting keeps coming up
You’ll notice all three swaps quietly involve counting something. That isn’t a coincidence, though I want to be careful about how far I take it. Counting gives a shapeless stretch of time some structure a child can hold, and it gives them something to do with their attention. Whether counting specifically beats any other absorbing task, I don’t know of evidence either way.
It’s why Tully counts things. Acorns, pebbles, and the long slow minutes while a berry makes up its mind about being ripe. Both of Tully’s songs are counting songs, and one of them, Waiting Is Hard, is about exactly this: Plumble and Tully counting together while a berry takes its time. There’s also a shorter page on helping a toddler learn to wait if you want the practical bit without the studies.
Where the evidence runs out
- The reliability study is small, at 28 children, and it’s one session in a lab. It’s a striking result and it needs to be held loosely.
- The replication tells us the original prediction was largely confounded. It doesn’t tell us that waiting is unimportant, only that it isn’t the lever it was sold as.
- The attention work is from the 1970s and used a lab task, not a kitchen at five in the afternoon.
- Nothing here has been tested as parenting advice. It’s a set of findings, and the swaps above are our reading of them.
When it doesn’t work
Some waits are just too long, and no technique fixes a two year old at the end of a supermarket queue. Age matters more than method here, and a lot of this gets easier on its own between three and five.
If your child seems unable to wait at all in a way that stands out from other children the same age, or if it’s affecting preschool, that’s worth mentioning to your pediatrician. Not because a hard-to-wait three year old is unusual, because they aren’t, but because someone who can see your child is better placed to say than anyone writing generally.
Sources
We’d rather show our working than sound certain.
- Droit-Volet, S. (2013). Time perception in children: A neurodevelopmental approach. Neuropsychologia, 51(2), 220–234. https://doi.org/10.1016/j.neuropsychologia.2012.09.023
- Kidd, C., Palmeri, H., & Aslin, R. N. (2013). Rational snacking: Young children’s decision-making on the marshmallow task is moderated by beliefs about environmental reliability. Cognition, 126(1), 109–114. https://doi.org/10.1016/j.cognition.2012.08.004
- Mischel, W., & Baker, N. (1975). Cognitive appraisals and transformations in delay behavior. Journal of Personality and Social Psychology, 31(2), 254–261. https://doi.org/10.1037/h0076272
- Mischel, W., Shoda, Y., & Rodriguez, M. L. (1989). Delay of gratification in children. Science, 244(4907), 933–938. https://doi.org/10.1126/science.2658056
- Watts, T. W., Duncan, G. J., & Quan, H. (2018). Revisiting the marshmallow test: A conceptual replication investigating links between early delay of gratification and later outcomes. Psychological Science, 29(7), 1159–1177. https://doi.org/10.1177/0956797618761661
Plumble’s World is a calm, gentle media experience for children ages 2 to 5. It is not a therapeutic or clinical program, and it is not a substitute for advice from your pediatrician.