“…The results of the Beasley survey were accepted as the American standard for the threshold of hearing by the American Medical Association (AMA) and the American Standards Association in 1951 (Glorig, 1956;Jerger, 2009). In contrast, the self-report of hearing ability has not been used to determine the presence or absence of a hearing disorder in a number of other hearing threshold surveys (Lane, 1922;Zuehl, 1922;Sivian and White, 1933;Dadson and King, 1952;Wheeler and Dickson, 1952;Hinchcliffe, 1961).…”