Educational technology Dissertations 123 Dissertations, Academic 122 Computer-assisted instruction 120 Study and teaching 67 Education 33 Study and teaching (Secondary) 33 Internet in education 32 Teaching 32 Aids and devices 27 Design 18 Information technology 18 Web-based instruction 18 Teachers 17 English language 16 Instructional systems 16 Study and teaching (Higher) 16 Interactive multimedia 15 Evaluation 14 Mobile communication systems in education 14 Science 14 Data processing 13 Effect of technological innovations on 13 Mathematics 13 Education, Higher 12 Educational innovations 11 Training of 11 Technological innovations 10 Computer network resources 9 Education, Secondary 9