Controlled testing Reply #25 – 2013-02-24 17:36:45 Quote from: Yahzi on 2013-02-24 16:31:30Correct me if I'm wrong but I read an article by Sean Olive where (if I'm understanding what he says) he says that before 1994 there were no published scientific studies supporting DBT.http://www.aes.org/e-lib/browse.cfm?elib=3839High-Resolution Subjective Testing Using a Double-Blind Comparator (JAES paper - peer reviewed, etc.)"A system for the practical implementation of double-blind audibility tests is described. The controller is a self-contained unit, designed to provide setup and operational convenience while giving the user maximum sensitivity to detect differences. Standards for response matching and other controls are suggested as well as statistical methods of evaluating data. Test results to date are summarized."The nearly identical AES conference paper was given the previous year in 1981.I am informed that if one follows the Journal of the Acoustical Society of America, one would find papers describing earlier controlled testing relating to hearing. BTW the hearing folks use something they call an ABX test which is a little different from the one described above.