1. Using only secondary research. Relying on the published work of others doesn’t give you the full picture. It can be a great place to start, of course, but the information you get from secondary research can be outdated. You can miss out on other factors relevant to your business.
2.Using only web resources. When you use common search engines to gather information, you get only data that are available to everyone and it may not be fully accurate. To perform deeper searches while staying within your budget, use the resources at your local library, college campus or small-business center.
3.Surveying only the people you know. Small-business owners sometimes interview only family members and close colleagues when conducting research, but friends and family are often not the best survey subjects. To get the most useful and accurate information, you need to talk to real customers about their needs, wants and expectations.