TY - JOUR TI - The impact of vocabulary knowledge on reading, writing and proficiency scores of EFL learners AB - This study is an attempt to clarify the incremental and multidimensional nature of foreign language vocabularydevelopment and its relation to the participants‟ reading and writing performances and general language abilityof English as a foreign language (EFL). With this principle aim, the current study investigated the relationshipbetween receptive and productive vocabulary knowledge, the relationship between receptive vocabularyknowledge and reading performance and the relationship between productive vocabulary knowledge and writingperformance using the participants‟ scores on vocabulary knowledge tests, a reading exam and a writing exam.Additionally, the lexical level of the essays written by the participants and its relation to their productivevocabulary knowledge and the impact of both receptive and productive vocabulary knowledge on theparticipants‟ general language ability of EFL were also examined. 175 students studying in an intensive languageprogram participated in the study. The results revealed that the students‟ receptive vocabulary knowledge waslarger than their productive vocabulary knowledge. It was also found that the contribution of vocabularyknowledge to the foreign language performances of reading, writing and proficiency was significant. Moreover,according to the Lexical Frequency Profile results, the lexical level of the student essays and the students‟productive vocabulary knowledge were significantly related. AU - KARAKOÇ, Dilek AU - DURMUŞOĞLU KÖSE, GÜL PY - 2017 JO - Journal of Language and Linguistic Studies VL - 13 IS - 1 SN - 1305-578X SP - 352 EP - 378 DB - TRDizin UR - http://search/yayin/detay/293635 ER -