Deaf people 197 Research 155 Deaf children 129 Education 124 History 91 Means of communication 67 Sign language 56 more ... Hard of hearing children 50 American Sign Language 49 Language 47 Family relationships 43 Deafness 42 Psychological aspects 34 Hard of hearing people 33 Study and teaching 33 Testing 29 Auditory perception 25 Politics and government 25 Reading 24 Teachers of the deaf 24 Attitudes 23 Audiometry 22 Parent and child 22 Speech perception 22 Hearing aids 20 Social aspects 20 English language 19 Auditory evoked response 17 Mainstreaming in education 17 Older deaf people 16 less ...