یاسر حدیدی

EFL learners’ ability to use advanced and varied vocabulary is a crucial issue in writing performance. This study aimed to investigate the effect of writing task type on lexical diversity and sophistication. The relationship between lexical sophistication and lexical diversity in the narrative, argumentative, and descriptive task types written by upper-intermediate EFL learners was also explored. To this end, 70 EFL upper -intermediate learners, enrolled in advanced writing tasks, were selected as the participants. They undertook narrative, descriptive, and argumentative writing tasks in a counterbalanced way. Then, Vocabulary Diversity (Voc-D) and Measure of Textual Lexical Diversity (MTLD) were used to measure lexical diversity. Lexical sophistication was measured using CELEX log frequency and Beyond 2000 Words (K3+). The writings were pasted into Coh-Metrix measure MTLD, Voc-D, and CELEX. VocabProfiler was also used to measure K3+ of the writings. In lieu of the purposes of the study, the research design involved repeated measures and correlation. Using Multivariate Analysis of Variance and Pearson’s Correlation Coefficient, the findings revealed that lexical diversity varied significantly across the three writing tasks. The highest scores of MTLD and Voc-D belonged to the narrative, argumentative, and descriptive writing tasks, respectively. Moreover, EFL learners used more advanced words in argumentative task type according to the measurement of CELEX and K3+ level words. However, learners' lexical sophistication in narrative and descriptive writings did not emerge as significantly different when measured by K3+. The significant positive relationship between lexical sophistication and lexical diversity was evident in all three task types.

The roles and effects of changes in syntax on comprehension and processing effort, and the relationships between these two, comprise a large and separate field of inquiry, with the general belief now in place that such changes and variations bring about varied psycholinguistic and discursive implications for comprehension, manifesting themselves differently in different genres.The current study is a brief attempt at bringing out the differences in the complexity of the noun groups in two novels, one of which is a 19th century novel, Charlotte Bronte’s Jane Eyre, and the other is a 21st century one, Stephanie Meyer’s Twilight. Each novel was analyzed for the ten longest nominal groups used in them, representative also of the complexity inherently evidenced by a long nominal group. It turned out that there is little difference between the size of noun groups in the two novels. Thus, the added complexity and challenge in processing and comprehending 19th century prose fiction can be explained by the generic tendency in such genre towards the deployment of a higher rate of rank-shifted embedded structures in the noun groups and more varied qualifiers that employ more non-finite clauses as post-nominal qualification. There is need to look into processing difficulty and interpretation challenge posed by different literary genres for different groups of learners, because, in line with a now common SLA understanding, full and conscious comprehension, parsing and interpretation of syntactic components play a marked role in rich and native-like writing for learners.

From a Systemic Functional perspective, Grammatical Metaphor (GM) as is taken to be a chief driving force in the discourse of different genres, an important adult language machinery for ideational meanings to be semantically cross-mapped and realized through a different form in the stratum of the lexico-grammar, in order to convey changed meanings and tinker with the discursive flow and development of text in real time, mainly through nominalization of adjectives and verbs. Using a number of established works of the English novel as data, this study draws upon the author’s previous model for the categories of GM used in modern prose fiction, with the main focus placed on one of the six categories, Prepositional GM (PGM). PGM figures with a very high frequency in fiction and occurs when a GM is preceded by a preposition. This study finds that the language of prose fiction in English deploys some of these PGMsin either of two different meaning sof the adverbial, varying according to context. Again, as seen to be the hallmark of GM by many, GM is found to open up vast ideational meaning potentials in the semantics stratum, from which the lexico-grammar makes choices according to context and intended meaning. As argued elsewhere in the literature and here, and as backed up by the author’s own experience of the advanced teaching of writing and reading, broadened understanding of GM is a critically important component to writing instruction and its effectiveness, as seen in the large-scale horizons and agendas for effective teaching of English as a Foreign Language in Iran and beyond.