The diversity of scientific methods has received increasing attention in the field of science education. This paper aimed to investigate how preservice chemistry teachers perceive scientific methods and their diversity. Based on the theoretical framework of Brandon's Matrix and previous research, two tasks (i.e., Task 1 "understanding of the components of Brandon's Matrix" and Task 2 "views on the diversity of scientific methods") and follow-up interview questions were developed in this study as research instruments. 130 preservice chemistry teachers from two universities in China were selected as participants. The statistical results of the questionnaire survey revealed that the participants showed a relatively satisfactory understanding of the components of Brandon's Matrix, and they judged the hypothesis testing more accurately than variable manipulation. However, the majority of participants held relatively naive views on the diversity of scientific methods, suggesting that they endorsed the idea of "the scientific method". Moreover, it was found by in-depth interviews that four typically held reasons led to the misunderstanding of scientific methods by preservice chemistry teachers, namely, misinterpreting the liberal meaning of item scenarios, misconceptions in identifying the "variable manipulation", grade disparity in the scientificity, and past learning experience in chemistry. At the end of this paper, the implications of the findings and the suggestions for further research were discussed.

Recently, with the intensification of employee suicides in well-known international companies such as Facebook and Pinduoduo, people are paying more and more attention to the violation of employee rights and interests. As an important embodiment of safeguarding the legitimate rights and interests of employees, the corporate social responsibility to employees has become one of the focuses of academic discussions. The aim of this article is to build a corporate social responsibility evaluation system for employees for Chinese clothing companies. As a representative of labor-intensive enterprises, enterprises in the cloth industry often need to rely on the strength of their employees to create value more than ordinary enterprises. Therefore, it is of practical significance to study the corporate social responsibility of employees in the cloth industry. In addition, China is an important exporting country of clothing in the world, and its market environment is different from that of developed countries. Research with Chinese enterprises as samples may lead to different conclusions. Finally, unlike general CSR, the evaluation of employee CSR needs to consider the importance of subjective and objective factors. At this time, the use of the catastrophe progression method can more accurately evaluate the weight of each factor. The result of our research on 100 Chinese clothing companies shows that enterprises with higher rankings in clothing industry will fulfill social responsibility to employees better. The use of the catastrophe progression method to evaluate corporate social responsibility to employees can reduce errors caused by subjective steps such as assigning weights in Analytic Hierarchy Process (AHP) and improve the accuracy of evaluation.