Given the lack of peer review, evaluating the quality of a preprint requires a critical approach:
Author Expertise: Check the credentials and previous work of the authors to assess their expertise in the field. Methodology: Scrutinize the methodology for robustness and appropriateness. Look for detailed descriptions of data collection and analysis. Results and Conclusions: Ensure that the results are consistent with the data presented and that the conclusions are supported by the findings. Feedback: Look for comments and feedback from other researchers, which can provide additional insights into the research's validity.