Abstract
We subjected 66 children in a kindergarten, in the lower and middle grades of a primary school to pure-tone audiometry and mental tests, and studied the correlation between the reliability of pure-tone audiometry and their mental age with the following results.
(1) One single measurement of pure-tone audiometry can give no reliable results with children of mental age of up to 10 years.
(2) There was a child in the lower grade of a primary school who showed mental age of more than 11 years and fixing of the threshold at the first measurement. Therefore reliability cannot be determined only by calendar age.
(3) But even with children having mental age of no more than 6 years we can expect to obtain results reliable in some degree if measurements are repeated on them.
