Sometimes the abstract is all you need to spot a bogus study. If the abstract passes the test, read the actual study. At first glance they may seem nearly impossible to decipher, but it gets easier after you've stumbled through a few. You may want to bookmark this page as a reference. More Information BioMedNet gathers information from thousands of medical journals.
Most abstracts are available at no charge, and complete studies are available for a fee.
A good explanation of statistics terms. Then buy it. A few other questions to ask.