You keep mentioning those 14 studies as if they were the be-all and end-all in this issue, when in fact they're a minuscule part of the whole picture. Not to mention that they aren't available for us to read and critique, unless we're willing to subscribe to a number of journals in order to do so.
Have you read them yourself? Have you read any of those linked to by Ninjalawyer and myself? Have you read the one you yourself linked to, rather than just the article which directed you to it?
|