Which category of DECA events involves written reports?

The category of DECA events that involves written reports is indeed Business Research events. In these events, participants are tasked with researching a specific business-related topic, conducting thorough analyses, and presenting their findings in a comprehensive written report. This format allows students to demonstrate their research skills, analytical thinking, and ability to communicate complex information effectively. The emphasis on written reports is critical in these events because they showcase not only the students' understanding of the subject matter but also their ability to articulate their insights and recommendations in a professional manner.

In contrast, Entrepreneurship events typically focus on developing and presenting a business plan or idea without the same emphasis on written research components. Team decision-making events prioritize collaborative problem-solving during a timed competition, and while there may be some written elements, they do not primarily center around creating extensive reports. Service learning events are focused on community engagement and the application of marketing principles to service projects, which may involve presentations and reflections but do not necessarily require detailed written reports as a core component.