A matters arising: a structural equation modeling approach to investigate HIV testing willingness for men who have sex with men.

This is a Matters Arising about an article titled "A structural equation modeling approach to investigate HIV testing willingness for men who have sex with men in China" in the issue of AIDS Res Ther 20, 64 (2023) " of this journal has been published. While thanking and appreciating the good authors of this article, we would like to explain some of the methodological issues of this study in order to clarify and disambiguate the methodology part of this article and other articles submitted in this style. First of all, it should be known that the concept and definition of structural equation modeling, the reason and method of doing it, specifying the observable and latent variables in the model, the exogenous and endogenous variables of the model, the correct way to draw the SEM graph, should be properly considered. The authors of this Matters Arising do not seek to refute or confirm the authors of this article. Our final opinion is that the methodology section should be written better and scientific clarification should be made in the methodology section for readers and interested parties.