Assignment task:
Iwahori, M., Oshiyama, C., & Matsuzaki, H. (2022). A quasi-experimental controlled study of a school-based mental health programme to improve the self-esteem of primary school children. Humanities and Social Sciences Communications, 9(1), Article 1.
Briefly summarize the study. For example, discuss the inclusion of 2-group tests, regression analysis, and time-series analysis in terms of the study design's strengths, weaknesses, or limitations. What challenges or limitations did the researcher identify they encountered by choosing this method?