How to Get People to Tell the Truth, According to Science


When you ask someone a question, you expect a truthful answer, right? In an ideal world, people would always be honest. But research suggests reality is far messier than that. According to a study from the University of Massachusetts, around 60 percent of people cannot go ten minutes in a normal conversation without telling at least one lie. T

hat does not mean everyone is dishonest all the time, but it does show how common small lies can be in everyday communication.

We have all been in situations where something feels off in a conversation, where we suspect we are not being told the full truth. Yet most of the time, we do not directly accuse people of lying. Social rules, politeness, and uncertainty make that difficult.


So the real question becomes, is there a way to increase the chances of getting an honest answer without confrontation?

Some people believe they can detect lies through body language alone. You may have heard ideas like someone looking up and to the left means they are lying. Unfortunately, science does not support simple tricks like that.

Research has shown that lie detection is far more complex, and relying on single behaviors is unreliable. Instead, scientists suggest that the way we ask questions plays a much bigger role in whether people tell the truth.

A study from the University of Utah explored exactly this idea. Researchers wanted to understand whether question phrasing could influence honesty. In one experiment, participants were placed in a scenario where they had to sell a used electronic device that was known to have problems.Buyers then asked different types of questions, each phrased in a slightly different way.


When buyers asked a very general question like what can you tell me about the device, only a small number of sellers admitted to any issues. Most participants avoided mentioning the defects entirely.

However, when the question became more direct, such as it does not have any problems does it, the number of honest answers increased significantly. And when buyers used an even more direct approach, asking what problems does it have, the majority of sellers openly admitted the truth.

The results showed a clear pattern. The more specific and assumptive the question, the more likely people were to be honest. But why does this happen?


The explanation is rooted in psychology. When a question assumes that information already exists, it subtly signals to the respondent that the truth is expected and possibly already known. This reduces their ability to avoid the topic. On the other hand, vague questions give people more room to deflect, downplay, or omit information without feeling directly pressured.


In other words, general questions make it easier for people to hide the truth, while targeted questions make honesty feel like the safer option. It is not about tricking someone, but about removing the comfort of ambiguity.

This has practical implications in everyday life. If you need accurate information, whether in interviews, negotiations, or even personal conversations, asking clear and direct questions can improve your chances of getting the truth. Instead of asking open ended or overly polite questions, it is often more effective to address the issue directly and specifically.

There is also a useful strategy when you already suspect someone might be dishonest. Instead of accusing them outright, you can ask for detailed explanations of their story. The more details they provide, the more opportunities there are to spot inconsistencies or gaps in their account.

Science suggests that truth is not just about spotting lies, but about shaping conversations in a way that makes honesty more likely in the first place. And while no method is perfect, the way you ask questions can make a bigger difference than most people realize.

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