Research interviews are a qualitative data collection method used to gather in-depth information from participants. They involve direct, face-to-face conversations or virtual meetings where researchers ask open-ended questions. This approach allows for a deeper understanding of participants' thoughts, feelings, and experiences related to a specific topic. These interviews can be structured, semi-structured, or unstructured, depending on the research goals. Structured interviews follow a strict format, while semi-structured interviews allow for more flexibility. Unstructured interviews are more conversational, enabling participants to express their views freely. Overall, research interviews are valuable for exploring complex issues in detail.