The Principles of 'Good Science' All true science is based on the scientific method, which encompasses certain error-preventing principles.
Good hypotheses stem from repeated, objective observations.
The quality of the hypothesis determines the feasibility of experimentation. Conclusions or claims that stem only or preferentially from data consistent with preconceived notions are not credible. Any credible theory must be consistent with all relevant data. Subjective reports and opinions, even expert opinions, have limited value in a search for facts. Often, opinions are acceptable expedients to filling informational gaps.