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. 2021 May 31;12:665144. doi: 10.3389/fpsyg.2021.665144

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Copyright © 2021 Rüth, Breuer, Zimmermann and Kaspar.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Moderating effects of participants' prior knowledge and the difficulty of quiz items on quiz performance when receiving KCRF and AIF in Study 1 and Study 2. (A) Quiz scores of participants with low prior knowledge and high prior knowledge in Study 1. (B) Quiz scores for easy and difficult quiz items in Study 1. (C) Quiz scores of participants with low prior knowledge and high prior knowledge in Study 2. (D) Quiz scores for easy and difficult quiz items in Study 2. Vertical lines indicate the standard error of the mean.