The \u2018I knew it all along\u2019 phenomenon: Second-order false belief understanding and the curse of knowledge in primary school children.

This study investigated two different expressions of the so-called curse of knowledge in primary school children: hindsight bias and outcome bias. Further, it explored the possible predictive function of false belief understanding in reducing these biases. Ninety-one children aged 7, 9, and 11 years (middle- to upper-middle class) were administered classical first- and second-order false belief tasks as well as hindsight and outcome bias tasks in a within-subjects design, while controlling for cognitive level. Both biases were found at all ages. Second-order false belief understanding seemed to reduce outcome bias but not hindsight bias. These findings indicate that the curse of knowledge is a multifaceted construct with potential relevant implications for learning in children

Hearing mothers and oral deaf children: an atypical relational context for theory of mind

The study assessed Theory of Mind (ToM) abilities in a group of oral deaf children and in their hearing mothers using a battery of ToM tasks. It also investigated the connection between mother and child in ToM performance. Participants were: 17 oral deaf children (aged 5 to 14 years) were paired by gender, age, and mental age with 17 hearing children; 17 hearing mothers of deaf children and 17 hearing mothers of hearing children. Compared to the hearing children, the deaf children faced difficulties in all ToM tests, and the hearing mothers of the deaf children were less capable than the mothers of the hearing children in all the ToM tests. Further, a specific ToM interaction model was found between the hearing mothers and the deaf children. The results confirmed ToM poor performance faced by the oral deaf children, showed the ToM level of hearing mothers of deaf children, and the ToM style of hearing mothers\u2013deaf children dyads. Also, findings underline some educational implications related to the socio-relational origin of the ToM deficit in oral deaf children