Research Education 375 Deaf 202 Deaf children 112 Attitudes 101 Psychological aspects 85 Psychology 76 más ... Language 70 Testing 68 Means of communication 67 Deafness 62 English language 58 Hearing impaired children 57 Study and teaching 56 Academic achievement 48 Speech perception 40 Social aspects 38 Reading 37 Teachers 37 Hearing aids 36 Ability testing 35 Sign language 35 Evaluation 34 Physiological aspects 34 Students 34 Hearing impaired 29 Study and teaching (Secondary) 29 Audiometry 27 Teachers of the deaf 27 Family relationships 26 menos ...