This study investigated whether young children make strategic decisions about whether to lie to conceal a transgression based on the lie recipient's knowledge. In Experiment 1, 168 3- to 5-year-olds were asked not to peek at the toy in the experimenter's absence, and the majority of children peeked. Children were questioned about their…

This study examined age differences in children's vulnerability to be misled by two types of false overheard rumors, namely a rumor that suggested a reasonable explanation for an earlier unresolved experience and a rumor that suggested an explanation that conflicted with information already in memory. Results indicated that all of the children…

Used stories involving self-deception, lying, and misleading appearances to examine 4- to 9-year olds' understanding of the relations between false belief, evidence, and epistemic responsibility. Found that younger children who understood false belief understood simpler types of deception but that understanding self-deceivers' epistemic…

Children between three and five years of age engaged in a procedure in which a puppet competitor chose an object which the children preferred. Fewer than 30 percent of three year olds but more than 80 percent of five year olds knew how to conceal their preference from the competitor. (BC)

Forty-eight children aged four and six years listened to stories in which it would be appropriate for the protagonist to feel a negative emotion. Results indicated that six-year-olds were more accurate than four-year-olds in judging that real and apparent emotion would not coincide when the protagonist hid feelings. (RJC)

Two experiments tested two, three, and four year olds' ability to understand false beliefs. Results of both experiments support earlier claims that an understanding of false beliefs and deceptive ploys emerges at around age four. Two and three year olds can be led to produce such ploys but show no clear understanding of their effect. (GLR)