Cognitively Complex Tasks and Individual Differences: Two Influential Factors in Iranian EFL Learners’ Written Text Quality

Abrahamsson, N., & Hyltenstam, K. (2008). The robustness of aptitude effects in near-native second language acquisition. Studies in Second Language Acquisition, 30, 481-509. doi:10.1017/s027226310808073x

Byrnes, H., & Mancho´n, R. M. (Eds.). (2014). Task-based language learning: Insights from and for L2 writing. Philadelphia/Amsterdam: John Benjamins. doi:10.1075/tblt.7.01byr

Carless, D. (2012). TBLT in EFL settings: Looking back and moving forward. In A. Shehadeh & C. A. Coombe (Eds.), Task-based language teaching in foreign language contexts: Research and implementation (pp. 345-358). Amsterdam: John Benjamin.doi: 10.1075/tblt.4.20car 

Carroll, J. (1981). Twenty-five years of research on foreign language aptitude. In Karl C. Diller (Ed.), Individual differences and univerals in language learning aptitude (pp. 119–154). Rowley, MA: Newbury House.

Carroll, J. B. (1993). Human cognitive abilities: A survey of factor-analytic studies. Cambridge: Cambridge University Press. doi: 10.1017/cbo9780511571312 

Carroll, J., & Sapon, S. M. (1959). The Modern Language Aptitude Test. San Antonio, TX: Psychological Corporation.

Como, L., Cronback, L. J., Kupermintz, H., Lohman, D. F., Mandinach, E. B., Porteus, A. W., & Talbert, J. E. (2002). Remaking the concept of aptitude: Extending the legacy of Richard E. Snow. Mahwah, N.J.: Erlbaum.

DeKeyser, R. M. (2000). The robustness of critical period effects in second language acquisition. Studies in Second Language Acquisition, 22, 499-533.

DeKeyser, R. M. (2012). Interactions between Individual Differences, Treatments, and Structures in SLA. Language Learning, 62(2), 189-200. doi: 10.1111/j.1467-9922.2012.00712.x

Dornyei, Z. (2005). The psychology of the language learner. Mahwah NJ: Lawrence Erlbaum. doi: 10.4324/9781410613349

Ellis, R. (2003). Task-based language learning and teaching. Oxford, UK: Oxford University Press.

Ellis, R., & Barkhuizen, G. (2005). Analyzing learner language. Oxford: Oxford University Press.

Flower, L., & Hayes, J. R. (1980). The cognition of discovery: Defining a rhetorical problem. College Composition and Communication, 31, 21–32. doi: 10.2307/356630

Frear, M. W., & Bitchener, J. (2015). The effects of cognitive task complexity on writing complexity. Journal of Second Language Writing, 30, 45-57. doi: 10.1016/j.jslw.2015.08.009

Hunt, K.W. (1965). Grammatical structures written at three grade levels. Urbana, IL: The National Council of Teachers of English.

Ishikawa, T. (2006). The effect of manipulating task complexity along the (_Here-and_Now) dimension on L2 written narrative discourse. In C. M. Garcı´a-Mayo (Ed.), Investigating tasks in formal language learning (pp. 136–156). Clevedon, UK: Multilingual Matters.

Johnson, M. D. (2017). Cognitive task complexity and L2 written syntactic complexity, accuracy, lexical complexity, and fluency: A research synthesis and meta-analysis. Journal of Second Language Writing, 37, 13-38. doi: 10.1016/j.jslw.2017.06.001

Kellogg, R. T. (1996). A model of working memory in writing. In C. M. Levy & S. Ransdell (Eds.), The science of writing: Theories, methods, individual differences and applications (pp. 57–71). Mahwah, NJ: Lawrence Erlbaum.

Kormos, J. (2011). Task complexity and linguistic and discourse features of narrative writing performance. Journal of Second Language Writing, 20, 148–161. doi: 10.1016/j.jslw.2011.02.001

Kormos, J., & Trebits, A. (2011). Working memory capacity and narrative task performance. In P. Robinson (ed.), Second language task complexity: Researching the cognition hypothesis of language learning and performance (pp. 268-85).Amsterdam: John Benjamins. doi: 10.1075/tblt.2.17ch10

Kormos, J., & Trebits, A. (2012). The role of task complexity, modality and aptitude in narrative task performance. Language Learning, 62(2), 439-472. doi: 10.1111/j.1467-9922.2012.00695.x  

Kuiken, F., & Vedder, I. (2006). Cognitive task complexity and linguistic performance in French L2 writing. In M. Garcı´a-Mayo (Ed.), Investigating tasks in formal language learning (pp. 117–135). Clevedon, UK: Multilingual Matters.

Kuiken, F., & Vedder, I. (2007). Task complexity and measures of linguistic performance in L2 writing. International Review of Applied Linguistics in Language Teaching, 45, 261–284. doi: 10.1515/iral.2007.012

Kuiken, F., & Vedder, I. (2008). Cognitive task complexity and written output in Italian and French as a foreign language. Journal of Second Language Writing, 17, 48-60. doi: 10.1016/j.jslw.2007.08.003

Kuiken, F., & Vedder, I. (2011). Task complexity and linguistic performance in L2 writing and speaking: The effect of mode. In P. Robinson (Ed.), Second language task complexity: Researching the cognition hypothesis of language learning and performance (pp. 91–104). Amsterdam: John Benjamins. doi:10.1075/tblt.2.09ch4

Kuiken, F., & Vedder, I. (2012). Syntactic complexity, lexical variation and accuracy as a function of task complexity and proficiency level in L2 writing and speaking. In A. Housen, F. Kuiken, & I. Vedder (Eds.), Dimensions of L2 performance and proficiency: Complexity, accuracy and fluency in SLA (pp. 143–170). Amsterdam: John Benjamins. doi:10.1075/lllt.32.07kui

Mohammadzadeh M. A. R., Dabaghi, A., & Tavakoli, M. (2013). The effects of simultaneous use of pre-planning along ±here-and-now dimension on fluency, complexity, and accuracy of Iranian EFL learners’ written performance. International Journal of Research Studies in Language Learning, 2(3), 49–65. doi: 10.5861/ijrsll.2012.168

Niwa, Y. (2000). Reasoning demands of L2 tasks and L2 narrative production: Effects of individual differences in working memory, intelligence, and aptitude (Unpublished M.A. dissertation). Aoyama Gakuin University, Tokyo.

Norris, J. M., & Ortega, L. (2009). Towards an organic approach to investigating CAF in instructed SLA: The case of complexity. Applied Linguistics, 555-578. doi:10.1093/applin/amp044

Ong, J. (2014). How do planning time and task conditions affect metacognitive processes of L2 writers? Journal of Second Language Writing, 23, 17–30. doi:10.1016/j.jslw.2013.10.002

Ong, J., &Zhang, L.J. (2010). Effects of task complexity on the fluency and lexical complexity in EFL students’ argumentative writing. Journal of Second Language Writing, 19, 218–233. doi: 10.1016/j.jslw.2010.10.003

Ong, J., & Zhang, L. J. (2013). Effects of the manipulation of cognitive processes on EFL writers’ text quality. TESOL Quarterly, 47, 375–398. doi:10.1002/tesq.55

Parry, T. S., & Child, J. R. (1990). Preliminary investigation of the relationship between VORD, MLAT, and language proficiency. In T. Parry & C. W. Stansfield (Eds.), Language aptitude reconsidered (pp. 30–66). Englewood Cliffs, NJ: Prentice Hall.

Petersen, C., & Al-Haik, A. (1976). The development of the defense language aptitude battery. Educational and Psychological Measurement, 36, 369–380. doi: 10.1177/001316447603600216 

Porte, R., & Richards, K. (2012). Focus article: Replication in second language writing research. Journal of Second Language Research, 21, 284–293. doi: 10.1016/j.jslw.2012.05.002

Robinson, P. (2001a). Task complexity, cognitive resources, and syllabus design: A triadic framework for investigating task influences on SLA. In P. Robinson (Ed.), Cognition and second language instruction (pp. 287–318). New York: Cambridge University Press. doi: 10.1017/cbo9781139524780.012

Robinson, P. (2001b). Task complexity, task difficulty, and task production: Exploring interactions in a componential framework. Applied Linguistics, 22, 27–57. doi:10.1093/applin/22.1.27

Robinson, P. (2003). The cognition hypothesis, task design, and adult task-based language learning. Second Language Studies, 21, 45–105.

Robinson, P. (2005a). Aptitude and second language acquisition. Annual Review of Applied Linguistics, 25, 45-73. doi:10.1017/s0267190505000036

Robinson, P. (2005b). Cognitive complexity and task sequencing: Studies in a componential framework for second language task design. International Review of Applied Linguistics, 43, 1-32. doi: 10.1515/iral.2005.43.1.1

Robinson, P. (2007a). Aptitudes, abilities, contexts and practice. In R. DeKeyser (Ed.), Practice in a second language: Perspectives from cognitive psychology and applied linguistics (pp. 256-   286). Cambridge: Cambridge University Press. doi: 10.1017/cbo9780511667275.015

Robinson, P. (2007b). Task complexity, theory of mind, and intentional reasoning: Effects on L2 speech production, interaction, uptake and perceptions of task difficulty. International Review of Applied Linguistics, 45, 237-257. doi: 10.1515/iral.2007.009

Robinson, P. (2011). Second language task complexity, the cognition hypothesis, language learning and performance. In P. Robinson (Ed.), Second language task complexity: Researching the cognition hypothesis of language learning and performance (pp. 3–38). Amsterdam: John Benjamins. doi: 10.1075/tblt.2.05ch1

Ruiz-Funes, M. (2013, November). The interplay between task complexity in foreign language writing at the intermediate level and measures of syntactic complexity, accuracy and fluency (CAF). Paper presented at the American Council on Teaching of Foreign Languages (ACTFL).

Ruiz-Funes, M. (2014). Task complexity and linguistic performance in advanced college-level foreign language writing. In H. Byrnes & R. M. Mancho´n (Eds.), Task-based language learning: Insights from and for L2 writing (pp. 163–192). Amsterdam: John Benjamins. doi:10.1075/tblt.7.07rui

Ruiz-Funes, M. (2015). Exploring the potential of second/foreign language writing for language learning: The effects of task factors and learner variables. Journal of Second Language Writing , 28 , 1–19. doi:10.1016/j.jslw.2015.02.001

Samuda, V., & Bygate, M. (2008). Tasks in second language learning. New York: Palgrave Macmillan. doi:10.1057/9780230596429_5

Sawyer, M. & Ranta, L. (2001). Aptitude, individual differences, and instructional design. In P. Robinson (Ed.), Cognition and second language instruction (pp. 319-353). New York: Cambridge University Press. doi: 10.1017/cbo9781139524780.013 

Schmidt, R. (2001). Attention. In P. Robinson (Ed.), Cognition and second language learning (pp. 3–32). Cambridge: Cambridge University Press. doi:10.1017/cbo9781139524780.003 

Shajeri, E., & Izadpanah, S. (2016). The impact of task complexity along single task dimension on Iranian EFL learners’ writing production. Theory and Practice in Language Studies, 6, 935–945. doi:10.17507/tpls.0605.04

Skehan, P. (1996). A framework for the implementation of task based instruction. Applied Linguistics, 17, 38–62. doi:10.1075/tblt.1.06afr

Skehan, P. (1998). A cognitive approach to language learning. Oxford: Oxford University Press.

Skehan, P. (2001). Tasks and language performance assessment. In M. Bygate, P. Skehan, & M. Swain (Eds.), Researching pedagogic tasks: Second language learning, teaching, and testing (pp. 167–185). London: Longman.

 Skehan, P. (2003). Task-based instruction. Language Teaching, 36, 1–14. doi: 10.1017/s026144480200188x

Skehan, P. (2009). Modelling second language performance: Integrating complexity, accuracy, fluency, and lexis. Applied Linguistics, 30, 510-532. doi: 10.1093/applin/amp047 

Skehan, P., & Foster, P. (1999). The influence of task structure and processing conditions on narrative retellings. Language Learning, 49, 93–120. doi:10.1111/1467-9922.00071

Skehan, P., & Foster, P. (2001). Cognition and tasks. In P. Robinson (Ed.), Cognition and second language instruction (pp. 183–205). New York: Cambridge University Press. doi: 10.1017/cbo9781139524780.009

Skehan, P., &Foster, P. (2005). Strategic and on-line planning: The influence of surprise information and task time on second language performance. In R. Ellis (Ed.), Planning and task performance in a second language (pp. 193–218). Amsterdam: John Benjamins. doi:10.1075/lllt.11.12ske

Sparks, R. L., & Ganschow, L. (2001). Aptitude for learning a foreign language. Annual Review of Applied Linguistics, 21, 90–111. doi: 10.1111/j.1540-4781.1991.tb01076.x 

Stansfield, C. W., & Reed, D. J. (2004). The story behind the Modem Language Aptitude Test: An interview with John B. Carroll (1916-2003). Language Assessment Quarterly, 1(l), 43-56. doi: 10.1207/s15434311laq0101_4 

Tavakoli, P. (2014). Storyline complexity and syntactic complexity in writing and speaking tasks. In H. Byrnes, & R. M. Manchón (Eds.), Task-based language learning: Insights from and for L2 writing (pp. 217–236). Philadelphia/Amsterdam: John Benjamins. doi:10.1075/tblt.7.09tav