AUTHOR=Lian Xiuping , Zheng Xinmin TITLE=How to construct an appropriate research design for the study of learner identity in blended learning? JOURNAL=Frontiers in Psychology VOLUME=14 YEAR=2023 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2023.1126605 DOI=10.3389/fpsyg.2023.1126605 ISSN=1664-1078