Determine how the Study will be Conducted. What kind of data (information) are you looking for? Primary data is information you collect yourself. Methods for collecting primary data include: questionnaires, surveys, interviews, and observations. Secondary data is information that someone else has collected. Sources for collecting secondary data may include: books, magazines, journals, newspapers, internet, etc... You need to decide which way is the best to collect the data to answer your question and make a plan of action.