What is the internet reliability in the medical research?

What is the difference when i do a questionnaire on the internet in comparason to a sample directly from the population?


Is the internet reliable?

What is the internet reliability in the medical research?
it is, if you are having the users register/validate their identity - otherwise, you never really know i the same person is voting a thousand times 9yes - i know you can look to I/P addresses and stuff, but not always a 100% accurate)
Reply:Research done on the internet will be biased because it is not representative of the population...you will leave out the entire demographic groups of people who have not the resources or education/inclination to use the internet or the people who do have these attributes but don't have the time to do so.
Reply:If you go to mainstream institutions like Mayo clinic, etc. you'll probably get great information. If you start listening to herbal cures and prayer cures, you'll eventially end up very sick or dead unnecessarily.
Reply:JMIR - the leading OPEN ACCESS peer-reviewed transdisciplinary journal on health and health care in the Internet age - and your e-Health research portal





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Reply:You can use internet to avoid the costs of stamps. And you can use Java to make advanced questionaires, e.g. testing reaction speed and such.





But your sample really has to be based on patient lists from clinics or population registries. If you just sample whoever happens to find your site with google, it rates as pseudo-science.