Re: How can we evaluate a journal or research study's validi
spidergal wrote:How can we evaluate a journal or research study's validity
It's a good question, especially as the sheer volume of information on all subject increases without relationship to measured accuracy (especially on the Internet).
The bottom line of validation (without going into philosophy of knowledge) is our own ability to understand the subject matter and then to repeatedly test our understanding with challenges from different viewpoints.
The same thing applies to evaluating basic scientific information except that frequently the depth of the information prevents us from experiencing first hand knowledge of key assumptions. As a result, most of us rely on a structure of validation which arises from peer review, which in turn is a result of the filter of science ("The better theory is the one that explains more, that explains with greater precision, and that allows us to make better predictions. - Karl Popper") (Wandel's Sig line).
In short, my answer to your question is to gather input from multiple "high value" sources and try to understand the material yourself, then draw a conclusion with the highest probable degree of accuracy.
Science isn't about absolute truth, it's about being mostly accurate, most of the time.