Supplementary material in research refers to additional information, data, or resources that are provided alongside the main research article or study. This material can include figures, tables, charts, graphs, videos, audio files, datasets, questionnaires, code, and any other relevant information that supports or expands upon the findings of the main study. Supplementary material is often important for providing additional context, details, or evidence for the research, and can help readers better understand and interpret the results of the study. It is typically included as part of the online version of the research article, allowing readers to access and review this additional information if they are interested in more detailed or supporting data. Overall, supplementary material is a valuable component of research publications, providing researchers with a platform to share and present additional information that may not fit within the main body of the article but is still relevant and important to the study.