Ellie Clarke is conducting product research and discusses different types of research methods. There are two main types of research: primary and secondary. Primary research involves collecting original data, which can be time-consuming and expensive, while secondary research uses existing data from other sources and is faster but possibly lower quality. Qualitative research focuses on rich data from small groups through methods like interviews, while quantitative research uses large surveys to collect lots of data but lacks detail. For her project, Ellie will rely mostly on secondary and qualitative research due to time constraints, using the internet, libraries, and a survey to efficiently gather feedback on advertising techniques.