Participants know what they are signing up for. Anonymity/Confidentiality: Protecting identities.
Start by writing a clear, one-sentence problem statement. Everything else in your methodology should serve that single sentence. Principles of Research Methodology: A Guide for...
You rarely have the time to talk to everyone in a population. Participants know what they are signing up for
The most important principle is consistency. Your must dictate your Methodology . Using a scale to measure weight
Are you actually measuring what you claim to measure? (e.g., Using a scale to measure weight, not height).