© 2018, American Psychological Association. This paper is not the copy of record and may not exactly replicate the final, authoritative version of the article. Please do not copy or cite without authors permission. The final article will be available, upon publication, via its DOI: 10.1037/xlm0000608 Responses improve the accuracy of confidence judgements in memory tasks. Marta Siedlecka, Zuzanna Skóra Jagiellonian University Borysław Paulewicz SWPS University of Social Sciences and Humanities Sonia Fijałkowska Jagiellonian University Bert Timmermans University of Aberdeen Michał Wierzchoń Jagiellonian University This research was supported by the National Science Centre, Poland HARMONIA grant given to MW (2014/14/M/HS6/00911). Correspondence concerning this article should be addressed to Marta Siedlecka, Institute of Psychology, Jagiellonian University, Kraków, Poland. E-mail: marta.siedlecka@uj.edu.pl