In the days, when honest news reporting was taken seriously, Who? How? What? When? Where? Why? Cost? was checked out before the newspaper went to bed. These questions were also considered by serious academic scientists.
Practically speaking, a specific event or a specific science discovery would have more answers to one question than to another. Consequently, a judgment as to relative accuracy would be made if one or more questions were not answered.
If a person were seriously ill, which question would one eliminate when talking with a surgeon?
Well said, and I like your example of someone who is seriously ill as far as not really being able to eliminate those questions. Not every piece of information answers every question, but the answers to all the questions put together gives a comprehensive picture. When applied to your example, those questions are all part of getting a good patient history, making a diagnosis when it’s not immediately obvious (e.g., House, MD, where they come up with many different ‘whys’ to explain the symptoms until they come finally to the correct diagnosis), and most definitely in terms of health care the patient is going to want to know how much the treatment costs.
who - the patient’s information (inevitably is filled out at some point by patient or a relative), and anyone else they may have come in contact with (if the illness is contagious).
what - symptoms
where - any elements in the work or home environment that might have contributed to the illness
when - also important to know the history of how long symptoms have been occurring (chronic, acute, family history)
why - the diagnosis
how - how was the illness acquired?
In science, these elements (as they apply) are also examined to supplement information on a given phenomena. Maybe not all elements will apply, but there’s:
who: who will be studying the phenomena? Who first came to the measurement (e.g., who measured the speed of light, or came up with a certain equation)? Who are we studying?
what: what is being studied, or measured? What are the conditions under which it occurs?, etc.
where: This is self-explanatory…where is the phenomena being studied, is it the same in all conditions, or does it change depending on location (e.g., in space vs. on Earth or other planet)?
when: when did what/who is being studied live? When did what is being studied occur, When was it discovered, etc.
why/how: why does this phenomena occur? Why does it occur in the way it does? etc.
And the cost of studying whatever the particular phenomena is also definitely taken into account! Otherwise, we’d probably have done a great deal more space exploration, particularly manned missions, than we have!