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Considering the future of the application of a dual explicit-implicit learning system to the L2 theory and research, Ellis (2006) argues that further investigation of the distinction is useful for modeling, understanding, and measuring second language proficiency. This study explored the differential accessibility of EFL learners' explicit and implicit grammatical knowledge to their language proficiency. The participants were 160 EFL graduate and undergraduate students at Shahrekord University (Iran). A test battery including a timed grammaticality judgment test (GJT), an untimed GJT, and a TOEFL was used to gather the data. A set of correlation coefficients was computed to explore the contributions of implicit and explicit grammatical knowledge to the TOEFL and its sub-components. The results showed that there was no statistically significant correlation between the EFL learners' implicit grammatical knowledge and their TOEFL (sub-components) scores, but there was a strong relationship between the EFL learners' explicit grammatical knowledge and their general proficiency. A medium relationship also existed between the explicit knowledge and the TOEFL sub-components. Then, a Standard Multiple Regression demonstrated that explicit knowledge better predicted the EFL learners' general L2 proficiency. The results suggest that learning explicit grammatical knowledge is necessary in EFL contexts and needs much more consideration when the primary focus is on the cognitive academic language proficiency or skills.

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This pseudo-longitudinal study adopted typical-error and corrective feedback approaches to investigating interlanguage fossilization. The errors in the argumentative essays of 76 Iranian EFL learners within and across three proficiency levels were identified and classified using the model proposed by Gass and Selinker (1994). The learners were first provided with implicit and then explicit feedback to see if the two feedback types would improve written production, and if there were errors that persisted. The results indicated that word choice, plural, word form and article “the” were the most frequent types of errors, with word choice topping the list. The results also showed that, although providing learners with feedback could lead to a reduction in errors, explicit feedback was a more effective strategy. However, the t-test results demonstrated that the short-term impact of feedback could not be sustained over time, a finding congruent with those of Truscott (2007) who questioned the efficacy of error correction. Moreover, the findings revealed that the error categories of pronoun, word order, passive and possessive were likely candidates of fossilization because, although for all the other error types implicit feedback could be beneficial, these showed resistance to correction and needed explicit feedback to be eliminated.

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Despite the general findings that address the positive contribution of teaching pragmatic features to interlanguage pragmatic development, the question as to the most effective method is far from being resolved. Moreover, the potential of literature as a means of introducing learners into the social practices and norms of the target culture, which underlie the pragmatic competence, has not been fully explored. This study, then, set out to investigate the possible contribution of plays, as a medium of instruction, to the pragmatic development through either explicit or implicit mode of instruction. To this end, 80 English-major university students were assigned to four experimental groups: two literary and two nonliterary groups. One of the literary groups (Implicit Play) received typographically enhanced plays containing the speech acts of apology, request, and refusal and the other (Explicit Play) received the same treatment in addition to the metapragmatic instruction on the acts. The medium of instruction for the nonliterary groups were dialogs containing the given functions; they were also given either enhanced input (Implicit Dialog) or input plus metapragmatic information (Explicit Dialog). Analyses of the four groups’ performance on a Written Discourse Completion Test (WDCT) before and after the treatment did not show any advantage for the literary medium, i.e., there was no significant difference between literary and nonliterary groups. It was rather the mode of instruction that mattered most, where explicit groups outperformed their implicit counterparts. These findings indicate that even though implicit teaching, that is, exposure to enhanced input followed by some awareness-raising tasks, is effective in pragmatic development, it cannot contribute so much to learning as can the explicit instruction.

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Various studies have confirmed the influential role of corrective feedback (CF) in the development of different linguistic skills and components. However, little, if any, research has been conducted on comparing types of linguistic errors treated by teachers through CF. To bridge this gap, this study sought to investigate the linguistic errors addressed and the types of CF provided by teachers. To this end, the classes of 40 teachers teaching at the intermediate level were audio-recorded for two successive sessions. The detailed analysis of around 128 hours of classroom interactions showed that explicit correction was the most frequent CF type, accounting for 48.5 percent of all CF types provided, and recast was the second most frequently used CF type, constituting 29.5 percent of all CF types. All the other CF types (i.e. request for clarification, confirmation check, repetition, metalinguistic feedback, elicitation, and multiple feedback) constituted 22 percent of the CF. Repetition was the least frequently used CF type, amounting to 0.66 percent of the CF given by teachers. As to the linguistic focus of CF, pronunciation errors were found to be the mostly noticed target for teachers’ CF, constituting 47 percent of all errors addressed, while vocabulary was the least frequently addressed linguistic target, accounting for 17.5 percent of all errors. The study suggests that teachers prefer explicit corrective strategies over implicit ones and that they provide CF mainly to correct pronunciations errors. The study suggests that there is a need for change in the types of CF teachers use and the relative attention they assign to different linguistic error types they treat through CF

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