Has it been tested and observed numerous times by more than one group of scientists?
Is the study or data documented completely, and does it follow the scientific method?
Does the information contain just the facts and avoid mixing in opinion and assumption?
Is the information presented purely for public knowledge, avoiding being connected with a new product that is for sale?
Does the information come from a third party that is not profiting from the results of the study?
Is this information supported by any other studies that have been conducted by other companies or agencies?
What measurements or other method of data collection would you use?
How could you form a statement about your hypothesis based on the data?