To successfully pull a practical joke on someone, children need to understand that their victims do not know what they themselves know, be able to intentionally manipulate others' beliefs, and maintain a straight face to safeguard the integrity of the joke. This study examined the relationship between children's developing theory of mind (ToM),…

Data from a growing number of research studies indicate that children with hearing loss are delayed in Theory of Mind (ToM) development when compared to their typically developing, hearing peers. While other researchers have studied the developmental trajectories of ToM in school-age students who are deaf, a limited number have addressed the need…

A central tenet of constructivist models of conceptual development is that children's initial conceptual level constrains how they make sense of new evidence and thus whether exposure to evidence will prompt conceptual change. Yet little experimental evidence directly examines this claim for the case of sustained, fundamental conceptual…

We investigated links between persuasive behavior and theory of mind (ToM) understanding using a novel naturalistic peer persuasion task in which children were invited to convince an interactive puppet to eat raw broccoli or brush his teeth. Sixty-three 3- to 8-year-olds (M age = 6 years, 6 months) took part in the persuasion task and were also…

The relations among children's theory of mind (ToM), their understanding of the intentionality of teaching, and their own peer teaching strategies were tested. Seventy-five 3-, 4-, and 5-year-olds completed 11 ToM and understanding-of-teaching tasks. Subsequently, 30 of the children were randomly chosen to teach a peer how to play a board game,…

Little is known about how and when preschoolers master the concept of teaching, particularly in relation to the acquisition of theory of mind (ToM). We investigated the relationship between the two in children aged 3-6 years old. One hundred and seventeen French preschool pupils answered questions about different teaching situations illustrated in…

An experimental study investigated the effect of the type of mental verb input (i.e., input with "think", "know", and "remember") on preschoolers' theory of mind development. Preschoolers (n = 72) heard 128 mental verb utterances presented in video format across four sessions over two weeks. The training conditions differed only in the way the…

Children of ages 3-5 ("N" = 62) were assessed by using standard theory-of-mind tasks and unusual belief tasks related to false information and beliefs endorsing violations of moral (welfare and fairness) and social conventional (school rules) domains. Younger children (under 5 years) did not accurately attribute unusual factual beliefs…

The aim of this study was to assess the specific relation between 3- to 6-year-olds' performance on a task measuring executive function (EF), the Dimensional Change Card Sort task (DCCS), and different developmental attainments in their theory of mind (ToM) by employing a battery of scaled ToM tasks that were comparable in task format and task…

Research Findings: The present study describes developmental trends in false belief (in other and self) in 46 Mexican-dialect Spanish-speaking children from lower socioeconomic backgrounds with and without language impairment (LI). Results indicate that typically developing children's performance on false belief tasks improves with age, with very…