Sometimes referred to as the 5 W's, 5W1H, or the 6 W's, WWWWWH is a series of questions used to gather information and prompt critical analysis of a source or situation. Each question should begin with one of the six interrogative words: Who, What, Where, When, Why, or How. The important mechanism of these questions is that they cannot be reasonably answered using "yes" or "no"; factual information is required to answer the question in a satisfactory manner.
Some examples of WWWWWH questions that you can use when evaluating sources are: