PSYCHOLOGY Lecture Notes - Lecture 1: World Health Organization, Conductive Hearing Loss, Sensorineural Hearing Loss

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Hearing impairment as a disability category is similar to the category of deafness, but it is not the same. The official definition of a hearing impairment by the individuals with disabilities. Education act (idea) is an impairment in hearing, whether permanent or fluctuating, that adversely affects a child"s educational performance but is not included under the definition of. " thus, knowing the definition of deafness is necessary to understand what sort of disabilities are considered hearing impairments. A hearing loss above 90 decibels is generally considered deafness, which means that a hearing loss below 90 decibels is classified as a hearing impairment. The world health organization (who) defines disabling hearing impairment in adults as a permanent unaided hearing threshold level (average for frequencies 0. 5, 1, 2, 4 khz (kilohertz)) for the better ear of 41 db or greater (who, 2001).

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