Abstract: | Ninety‐one children aged between 2;10 and 5;0 participated in a training study of false belief. Children were assigned to either an explanation condition, a practice condition or a control condition where children heard two stories unrelated to false belief. Children’s eye movements in anticipation of the protagonist reappearing were monitored at pre‐test. Only the explanation condition led to improvements in judgement and justification of a protagonist’s future action based on false belief. Children who looked in anticipation to where the protagonist thought the object was at pre‐test were more likely to give a correct judgement at post‐test than those who did not. Those children in the explanation group who gave a correct judgement at pre‐test were more likely to give an appropriate justification at post‐test than those who did not. Three main conclusions are drawn: (1) providing explanation about the underlying principles of a task is more likely to lead to improvements in performance than merely informing children of whether their response is correct; (2) the nature of improvements in performance will depend on the level of knowledge of the child at pre‐test; (3) training will only be beneficial for those children who demonstrate evidence of implicit understanding. |