This document describes 5 common research methods: interviews, questionnaires, focus groups, surveys, and internet/library research. Interviews collect primary qualitative data through face-to-face discussions but are time-consuming, while questionnaires efficiently gather primary data but risk inaccurate or incomplete answers. Focus groups effectively obtain qualitative information from group discussions yet require significant time. Surveys efficiently collect quantitative data from many individuals but not all people enjoy completing them. Internet and library research permit easy, inexpensive access to secondary data, but sources may be unreliable and finding relevant materials can be time-consuming.