Survey for Entrepreneurs
Pretty much every entrepreneur knows the basics of Lean Startup methodology: start by searching for product/market fit. Get out of the building and talk to customers. Run a series of experiments to validate your ideas. Above all else, validate your thinking as early as possible: don’t spend millions of dollars building something before you have tested the ideas and concepts with customers.
Where this tends to fall down in practice is that many entrepreneurs find it hard to reach real customers. Getting feedback from co-founders, friends, small focus groups, user testing sessions and even existing customers can be very helpful to qualitatively understand how others view your offering. But many times the sample group that you can reach is too small and biased towards people that will be polite to you, or who have self-identified as liking your product.