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The discovery of the handicap of deafness in school children led naturally to a desire to investigate the hearing of the preschool child. Up to this time, such efforts have been blocked by the difficulty of testing. No accurate tests have been invented heretofore.
The methods about to be described have been fully tried and offered to others in order to confirm their value.
TESTING THE HEARING OF CHILDREN TWO YEARS OF AGE
Until now, the hearing of these children has been determined by observing their response to clicking the fingers behind the ears and calling them by name and by noticing their attention to casual and familiar sounds. These observations are not, of course, quantitative tests.The Test.—A buzzer audiometer is used. The sound is transmitted over a telephone circuit in which has been placed a decibel meter. There is a cut-off on the line. The child is
MACFARLAN D. TESTING THE HEARING OF THE PRESCHOOL CHILD. Arch Otolaryngol. 1934;19(4):514–515. doi:10.1001/archotol.1934.03790040102008
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