AUTHOR=Krell Moritz , Xu Kate M. , Rey Günter Daniel , Paas Fred TITLE=Editorial: Recent Approaches for Assessing Cognitive Load From a Validity Perspective JOURNAL=Frontiers in Education VOLUME=6 YEAR=2022 URL=https://www.frontiersin.org/journals/education/articles/10.3389/feduc.2021.838422 DOI=10.3389/feduc.2021.838422 ISSN=2504-284X