Card sorting is a user experience research technique used to help understand how users categorize information.

A focus group for user research is a group interview session that is conducted with a small number of participants who share common characteristics, such as demographics or experiences relevant to the research question.

Participatory Design or co-design is a research method that actively involves all stakeholders in the design process, potentially in every stage. This approach is used to ensure that the result meets their needs and is usable. It has become increasingly popular in recent years as designers recognize the importance of involving end-users (current, potential or future) in the innovation process.

Qualitative research is a type of research that aims to gather and analyze non-numerical data in order to gain an understanding of individuals' social reality, including understanding their attitudes, beliefs, and motivations.

Tree testing is an important usability technique that all user researchers should be familiar with. By creating a task list, site map, and recruiting test participants, you can conduct your own tree test and make necessary changes to improve the findability of topics on your website.

Usability testing is a key method and one of the most important tools in UX. Usability testing evaluates a product, service, or tool with people that are representative of real users. Usability test facilitators directly observe people using a system to complete tasks.