From the Lab to the Classroom: Improving Children's Prospective Memory in a Natural Setting

Background: Laboratory-based studies have shown that children's ability to remember intentions (i.e., prospective memory; PM) can be improved by asking them to imagine performing the PM task beforehand (i.e., episodic future thinking; EFT) or to predict their PM performance. Moreover, combining the two strategies resulted in an additional improvement in children's PM performance. However, the effectiveness of these encoding strategies on real-life PM tasks is still unknown. Aims: The aim of the present study was to evaluate the effect of EFT instructions, performance predictions, and of their combination on children's PM in a natural setting, namely in the classroom. Sample: Twelve classes composed by a total of 121 children (53% females) aged between seven and 9 years participated to the study. Methods: As a PM task, children were asked by their teachers to deliver a letter to their parents and to bring it back to school the next day. Children were divided into four groups: control, prediction, EFT, and the EFT + prediction group. Parent reports on children's everyday prospective and retrospective memory failures were also collected. Results: Results showed that encoding strategies were effective in enhancing children's PM performance. However, differences compared to previous laboratory-based findings emerged since predicting PM performance resulted to be most effective in enhancing real-life PM performance. Moreover, parent reports were related to children's PM performance. Conclusions: These novel findings highlight the importance of studying PM interventions in natural settings in order to increase their ecological validity and inform educational practices.