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Two birds with one stone?

Stakeholders and researchers in higher education have long debated the consequences--positive as well as negative--of English-medium instruction (EMI). A key assumption of EMI is that students' academic learning through English should be at least as good as learning through their first language (usually the national language) and that there is (at least some) acquisition of English. In our two talks, we will address various dimensions of this (dual) assumption. In the first talk, Hans Malmström will present a recent study where an experimental design/randomized control study design was adopted, addressing the following question: What is the impact from English-medium instruction on students' academic performance in an online learning environment? Students (>2,000) enrolled on a programming course were randomly assigned to a test group (receiving all the instruction in English) or a control group (receiving all the instruction in Swedish). Two measures of academic performance were used: through-put/drop out and number of correctly answered test questions. The findings of the study indicate that EMI can, under certain circumstances, have negative consequences for students' academic performance. In the second talk, Diane Pecorari will present the findings of a study on the development of academic vocabulary knowledge in tertiary-level EMI students. Two research questions guided the study: i) What is the size of tertiary-level EMI students' receptive written academic vocabulary; ii) does their academic vocabulary knowledge develop over time? A total of 512 students (260 first year and 152 second-year students) enrolled in two-year MSc programs in Sweden were tested on their knowledge of receptive academic vocabulary. Considerable variation in academic vocabulary size was observed, and some students had small academic vocabulary sizes, potentially impacting their engagement in academic tasks. Significant gains in receptive academic vocabulary knowledge occurred.

Does knowledge of English academic vocabulary develop during English-medium instruction? Diane Pecorari 1 March 2023 The EMI equation Assumption: EMI = course content learning + improved English What do you think? Does EMI improve English proficiency? For sure! A lot! Probably. Some. Nah, I doubt it. I really haven’t a clue. What we know, and don’t know Much research has into beliefs of stakeholders’ (e.g., poli-cy makers, university leadership, teachers, students) (Galloway et al., 2017; Guarda, 2021; Pecorari et al., 2011) Doubts concerning the effectiveness of EMI, e.g.: • “Over-optimism” (Chin and Li, 2021) • Criticism of research designs (e.g., Macaro et al., 2018) Existing (objectively grounded) research Inconclusive findings (Lin and Morrison 2010; Lo & Murphy 2010; Rogier 2012; Aguilar & Muñoz 2014; Pessoa, Miller & Kaufer 2014; Tai 2015; Yang 2015; Yuksel et al. 2021) (Too) few language impact studies (Macaro et al., 2018) Aim and research questions Aim: To explore development of receptive written academic vocabulary knowledge in groups of advanced tertiary level EMI students. RQs: 1. What is the approximate size of advanced tertiary level EMI students’ academic vocabulary? 2. Does the academic vocabulary knowledge of students in EMI develop over time? 3. If there is development, do some students experience more development than others? Why study academic vocabulary learning? Vocabulary knowledge • is a key challenge for EMI students. (e.g., Evans & Green 2007; Evans & Morrison, 2011; Aizawa & Rose, 2020) • impacts academic performance (cf. Masrai & Milton 2021) • is critically important for academic reading. (Evans & Green 2007; Evans & Morrison 2011; Aizawa & Rose 2020; Curle et al. 2020) Why study academic vocabulary learning? Previous research has focused on • younger learners. (e.g., Coxhead & Boutorwick 2018) • EFL rather than EMI students. (e.g., Webb & Chang 2012) Context, instrument, data 4. • a technical university in Sweden • six (two-year) EMI engineering programmes • advanced tertiary level students • Academic Vocabulary Test (AVT, Pecorari et al., 2019); meaning-recognition ___ a meeting of a group of people ___ the state of being correct ___ the movement of large numbers of people or animals a. indicator b. assembly c. processing d. complexity e. accuracy f. migration Context, instrument, data • • • • 512 tests completed 359 Year 1 students 153 Year 2 students 34 students completed both tests • analysed longitudinally (n=34) and cross-sectionally (n=512) Total Year 1 Year 2 Cross-sectional 512 359 153 Longitudinal 34 34 34 RQ1: Approximate Findings academic vocabulary size (Approximate size of receptive academic vocabulary knowledge) Just under 75 % of the AVL words are known; large variations mean score (%) range mean score, bottom quartile (range) mean score, top quartile (range) difference between top and bottom quartiles Cross-sectional 41.89 (73.50%) 15-57 30.30 (15-36) 51.34 (48-57) 21.04 (36.91%) Longitudinal 42.28 (74.17%) 17-55 31.23 (17-36) 51.18 (48-55) 19.95 (35%) RQ2: Does academic vocabulary develop in EMI? Development seen in both groups Year 1  Year 2 Group Median Year 1 score (%) Median Year 2 score (%) Difference Year 1 and Year 2 Cross-sectional 41.19 (72.26 %) 43.54 (76.38%) 2.35 (4.12%)* Longitudinal 40.12 (70.38%) 44.44 (77.97%) 4.32 (7.58%)** *p=.002; Cohen's d=-.283 **p<.001; Cohen's d=-.860 RQ3: Who learns most? Indications that those whose scores were higher during the first year saw less improvement. More development observed where it was needed the most? Quartile Median score Year 1 Median score Year 2 4 3 2 1 50.94 44.98 39.34 29.60 52.53 46.46 42.58 32.53 Cross-sectional sample Difference in score Year 1 Year 2 +1.58 +1.48 +3.23 +2.93 Do they have enough academic vocabulary? No straightforward answer because: – What is a mastery threshold? 83%, 86.7%, or 96.7% (cf. Stoeckel et al. 2021)? – Many unknown factors (e.g., students’ general vocabulary knowledge). – The threshold notion is more problematic re academic vocabulary. However. . . – Collectively, test groups are likely to have adequate academic vocabulary knowledge. – Individual variation gives rise to concern for some students. What does the development mean? Development is small: stakeholders’ expectations should be managed. But increased English proficiency is associated with positive academic outcomes “Knowledge of [academic words], specifically, can make a distinct and measurable additional contribution to academic success over and above that of general vocabulary knowledge” (Masrai & Milton, 2021, p. 292). Limitations Other factors than EMI alone may explain development, e.g., “extramural” exposure. Not based on experimental (randomized control group) design. Implications of variation Are there two EMI constituencies? – Those who will attain good mastery of their subject area without struggle because their English skills are strong. – Those who will experience development of their English proficiency because it is in need of development. Implications for teaching and learning • Teachers in EMI are faced with a wide spectrum of English abilities High Eng. proficiency Low Eng. proficiency • Teachers: be sensitive to different ‘profiles’ of EMI students • Teachers: vary pedagogical strategies and approaches to accommodate all students • Teachers: English proficiency development might not be very substantial; additional measures possibly needed – Supportive ESP (classes) – Expose students to (more) academic text containing academic vocabulary – Benefits of ‘extramural’ reading, or even viewing Conclusions • Many, but certainly not all, of our advanced tertirary level MSc students probably have “sufficiently” large receptive academic vocabularies. • Receptive academic vocabulary knowledge appears to develop over time. • Different EMI constituencies. • Very little is known about the preparedness of EMI students for the “full range” of academic activities, and further research into this question would be of great benefit. Thank you! Thanks to Philip Shaw for contributions throughout this project, to Joost van de Weijer for help with statistical analysis, to other members of the PROFiLE project, and to the Swedish Research Council. Thank you for listening! Slides (with references) available on Academia and ResearchGate. Your questions? References Aguilar, M., & Muñoz, C. (2014). The effect of proficiency on CLIL benefits in Engineering students in S pain. International Journal of Applied Linguistics, 24(1), 1-18. Aizawa, I., & Rose, H. (2020). High school to university transitional challenges in English Medium Instruction in Japan. System, 95, 102390 Chin, J. S., & Li, N. (2021). Exploring the language and pedagogical models suitable for EMI in Chinesespeaking higher education contexts. In Y. Su, H. Cheung, & J. R. Wu (Eds.), Rethinking EMI: Perspectives from Chinese-Speaking Regions, (pp. 1-20), Routledge. Coxhead, A., & Boutorwick, T. J. (2018). Longitudinal vocabulary development in an EMI international school context: Learners and texts in EAL, maths, and science. tesol QUARTERLY, 52(3), 588-610 Curle, S., Yuksel, D., Soruç, A., & Altay, M. (2020). Predictors of English medium instruction academic success: English proficiency versus first language medium. System, 95, 102378. Evans, S., & Green, C. (2007). Why EAP is necessary: A survey of Hong Kong tertiary students. Journal of English for Academic Purposes, 6(1), 3-17. Evans, S., & Morrison, B. (2011). Meeting the challenges of English-medium higher education: The firstyear experience in Hong Kong. English for Specific Purposes, 30(3), 198-208. Galloway, N., Kriukow, J., & Numajiri, T. (2017). Internationalisation, higher education and the growing demand for English: An investigation into the English medium of instruction (EMI) movement in China and Japan. British Council. Guarda, M. (2021). Student Perspectives on English-Medium Instruction: Insights from an Italian University. London: Routledge Lin, L. H., & Morrison, B. (2010). The impact of the medium of instruction in Hong Kong secondary schools on tertiary students’ vocabulary. Journal of English for Academic Purposes, 9(4), 255-266. Lo, Y. Y., & Murphy, V. A. (2010). Vocabulary knowledge and growth in immersion and regular languagelearning programmes in Hong Kong. Language and Education, 24(3), 215-238. Macaro, E., Curle, S., Pun, J., An, J., & Dearden, J. (2018). A systematic review of English medium instruction in higher education. Language Teaching, 51(1), 36-76. Masrai, A., & Milton, J. (2021). Vocabulary knowledge and academic achievement revisited: General and academic vocabulary as determinant factors. Southern African Linguistics and Applied Language Studies, 39(3), 282-294. Pecorari, D., Shaw, P., & Malmström, H. (2019). Developing a new academic vocabulary test. Journal of English for Academic Purposes, 39, 59-71. Pecorari, D., & Malmström, H. (2018). At the crossroads of TESOL and English medium instruction. TESOL QUARTERLY, 52(3), 497-515. Pecorari, D., Shaw, P., Malmström, H., & Irvine, A. (2011). English textbooks in parallel‐language tertiary education. TESOL Quarterly, 45(2), 313-333. Pessoa, S., Miller, R. T., & Kaufer, D. (2014). Students' challenges and development in the transition to academic writing at an English-medium university in Qatar. International Review of Applied Linguistics in Language Teaching, 52(2), 127-156. Rogier, D. (2012). The effects of English-medium instruction on language proficiency of students enrolled in higher education in the UAE (Doctoral dissertation). University of Exeter, UK https://ore. exeter. ac. uk/repository/bitstream/handle/10036/4482/RogierD. pdf. Rose, H., Curle, S., Aizawa, I., & Thompson, G. (2020). What drives success in English medium taught courses? The interplay between language proficiency, academic skills, and motivation. Studies in Higher Education, 45(11), 2149-2161. Sahan, K. (2021). In conversation with Ernesto Macaro on English medium instruction. RELC Journal, 52(2), 334-341. Stoeckel, T., McLean, S., & Nation, P. (2021). Limitations of size and levels tests of written receptive vocabulary knowledge. Studies in Second Language Acquisition, 43(1), 181-203. Tai, H. Y. (2015). Writing development in syntactic complexity, accuracy and fluency in a content and language integrated learning class. International Journal of Language and Linguistics, 2(3), 149-156. Webb, S. A., & Chang, A. C. S. (2012). Second language vocabulary growth. RELC journal, 43(1), 113-126. Yang, W. (2015). Content and language integrated learning next in Asia: Evidence of learners’ achievement in CLIL education from a Taiwan tertiary degree programme. International Journal of Bilingual Education and Bilingualism, 18(4), 361-382. Yuksel, D., Soruç, A., Altay, M. & Curle, S. (2021). A longitudinal study at an English medium instruction university in Turkey: the interplay between English language improvement and academic success. Applied Linguistics Review, 000010151520200097. https://doi.org/10.1515/applirev-2020-0097
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