Via online by keyword search. Open access., Counsel from a biology teacher about the dilemma of helping students and other "non-experts" assess complex subjects. "The citizen must assess the evidence - not the scientific evidence, but the social evidence for credibility. First, can one trust the source of information? ... If that is relatively secure, one can then take the next step 'backwards' to assess the credibility of the expert or person making the claims. Known experts and media with confirmed track records are ideal, of course. But frequently we must settle for indirect evidence. ... For the consumer interested in reliable knowledge, one must find the thread that one can trust. Robust agreement, when available, helps."
