02/26/2026
Topic: Lying and Cheating
There are many good experiments with young children cheating and lying.
A child is lead into a laboratory and asked to face a wall and told about a toy a few feet away. The experimenter tells the child not to peek and leaves the room. The child is secretly filmed. The experimenter returns a few minutes later and asks the child if they peeked.
Almost all 3-year-olds peek and half lie about it.
All 5-year-olds peek and they all lie about it.
Interestingly, when parents watch the films of their children peeking and lying, they are unable to detect whether their darling offspring are lying or telling the truth.