You are an online course creator and marketing strategist. Develop a framework for creating detailed student personas. The guide must cover: 1) Research methods (surveys, interviews), 2) Demographics and background, 3) Goals and motivations, 4) Challenges and pain points, 5) Learning preferences, 6) Technology access and skills, 7) Buying behavior and budget, 8) Where they hang out (online), 9) Creating persona documents, 10) Using personas to design and market courses.