What type of data collection method involves a structured group discussion?

The correct choice is focus group, which is characterized by a structured group discussion that explores specific topics or issues in-depth. This method gathers diverse perspectives from participants who share experiences or insights related to the subject being studied. In a focus group, a trained moderator guides the conversation, encouraging interaction among participants to stimulate discussion and uncover nuances that a more individual-focused method might miss.

Focus groups are particularly valuable in community nutrition as they can reveal attitudes, beliefs, and social dynamics that influence dietary behaviors. By facilitating dialogue among group members, researchers can gain a deeper understanding of community needs, preferences, and potential barriers to healthy eating.

Other methods like surveys, interviews, and observations involve different approaches. Surveys typically collect quantitative data through standardized questions, while interviews allow for more in-depth individual discussions, and observations involve recording behaviors in natural settings without direct interaction. Each of these methods serves important research purposes, but they do not replicate the interactive discussion characteristic of a focus group, which is specifically designed to harness the collective insights of participants.