Language and languages Study and teaching English language 38 Second language acquisition 22 Dissertations 20 Dissertations, Academic 20 Foreign speakers 17 Study and teaching (Higher) 9 Computer-assisted instruction 8 Error analysis 6 Communicative competence 5 Language acquisition 4 Psychological aspects 4 Study and teaching (Secondary) 4 Ability testing 3 Applied linguistics 3 Attitudes 3 Data processing 3 Errors of usage 3 Language 3 Learning, Psychology of 3 Sex differences 3 Social aspects 3 Students 3 Vocabulary 3 Arabic speakers 2 Bilingual method 2 Chinese language 2 Chinese speakers 2 Competence and performance (Linguistics) 2