Vocabulary size (VS) and English language proficiency (ELP) are acknowledged as important factors in students’ overall cumulative grade point average (CGPA) in tertiary education. This study attempts to investigate the associations among vocabulary size, ELP, and CGPA. It also determines whether vocabulary size or ELP can better predict tertiary students’ CGPA. The study sample comprises 96 undergraduates on four programs at a Malaysian public university. The students’ vocabulary size was measured using a 20,000-word vocabulary size test, their ELP that was derived from their Malaysian University English Test scores, and their CGPA that was obtained from their academic transcripts. The correlational, comparative, and predictive analyses revealed a moderate and significant positive association among all the variables. In addition, vocabulary size emerged as a better predictor of CGPA than ELP, with a contribution of 25% to overall CGPA. The findings provide strong empirical confirmation demonstrating the significant function of vocabulary size in tertiary students’ CGPA. As a result of these investigations, suggestions were identified for future research.
Keywords: vocabulary size, cumulative grade point average (CGPA), English language proficiency, second language acquisition, tertiary education, English-medium instruction (EMI), language testingAddow, A. M., Abubakar, A. H., & Abukar, M. S. (2013). English language proficiency and academic achievement for undergraduate students in Somalia. Educational Research International, 2(2), 59–-66.
Abidin, S. A. Z., & Jamil, A. (2015). Toward an English proficiency test for postgraduates in Malaysia. SAGE Open, 5(3), 1–-10. http://doi.org/10.1177/2158244015597725.
Aina, J. K., & Olanipekun, S. S. (2013). Effects of English language on academic performance in physics and computer science among college of education students. American International Journal of Research in Humanities, Arts and Social Sciences, 4(2), 114–-117.
Alsager, R., & Milton, J. (2016). Investigating the relationship between vocabulary knowledge and academic success of Arabic undergraduate learners in Swansea University. Language in Focus, 2(2), 88–-124.
Arkoudis, S., Hawthorne, L., Baik, C., Hawthorne, G., O’Loughlin, K., Leach, D., & Bexley, E. (2009). The impact of English language proficiency and workplace readiness on employment outcomes and performance of tertiary international students. Melbourne: Center for the Study of Higher Education, University of Melbourne.
Beauvais, A. M., Stewart, J. G., DeNisco, S., & Beauvais, J. E. (2014). Factors related to academic success among nursing students: A descriptive correlational research study. Nurse Education Today, 34(6), 918–-923.
Bernama. (2014b, October 13). UUM fears lack of students due to MUET Band 1 and 2 implementation. The Sun Daily. Retrieved from http://www.thesundaily.my/news/1197431
Bryman, A., & Bell, E. (2015). Business research methods. New York: Oxford University Press.
Buniyamin, N., Abu Kassim, R., & Mat, U. (2015). Correlation between MUET and academic performance of electrical engineering students. Esteem Academic Journal, 11(2), 1–-11.
Cohen, J. (1992). A power primer. Psychological bBulletin, 112(1), 155–xxx.
Coxhead, A., Nation, P., & Sim, D. (2015). Measuring the vocabulary size of native speakers of English in New Zealand secondary schools. New Zealand Journal of Educational Studies, 50(1), 121–-135.
Creswell, J. W. (2013). Research design: Qualitative, quantitative, and mixed methods approaches. Los Angeles: Sage Publications.
Daller, M. H., & Phelan, D. (2013). Predicting international student study success. Applied Linguistics Review, 4(1), 173–-193.
Daller, M. H., & Xue, H. (2009). Vocabulary knowledge and academic success: A study of Chinese students in UK higher education. In B. Richards B., M. H. Daller, M.H. D. Malvern D, P. Meara P., J. Milton, J. and J. Treffers-Daller, J. (eEds.), Vocabulary studies in first and second language acquisition (pp. 179–-193). Palgrave Macmillan, London.
Daller, M., & Yixin, W. (2017). Predicting study success of international students. Applied Linguistics Review, 8(4), 355–-374.
Dearden, J. (2014). English as a medium of instruction--a growing global phenomenon. London: British Council.
Dooey, P., & Oliver, R. (2002). An investigation into the predictive validity of the IELTS test as an indicator of future academic success. Prospect, 17(1), 36–-54.
Elder, C., & von Randow, J. (2008). Exploring the utility of a web-based English language screening tool. Language Assessment Quarterly, 5(3), 173–-194.
Ellis, N. C. (2002). Frequency effects in language processing: A review with implications for theories of implicit and explicit language acquisition. Studies in sSecond lLanguage aAcquisition, 24(2), 143–-188.
Fakeye, D. O., & Ogunsiji, Y. (2009). English language proficiency as a predictor of academic achievement among EFL students in Nigeria. European Journal of Scientific Research, 37(3), 490–-495.
Field, A. (2009). Discovering statistics using SPSS. Sage publicationsPublications. London, England
Fraenkel, J. R., & Wallen, N. E. (2009). How to design and evaluate research in education. (7th ed.). New York: McGraw-Hill.
Fraser, W. J., & Killen, R. (2003). Factors influencing academic success or failure of first-year and senior university students: Do education students and lecturers perceive things differently? South African Journal of Education, 23(4), 254–-263.
Geide-Stevenson, D. (2018). Does English proficiency affect academic performance?. International Review of Economics Education, 28, 41–-48.
Harrington, M., & Roche, T. (2014a). Identifying academically at-risk students in an English-as-a-Lingua-Franca university setting. Journal of English for Academic Purposes, 15, 37–-47.
Harrington, M., & Roche, T. (2014b). Word recognition skill and academic success across disciplines in an ELF university setting. Association for Language Testing and Assessment of Australia and New Zealand (ALTAANZ): Papers in Language Testing, 3(2), 76–-99.
Juliana, O., & Abu Bakar, N. (2013). MUET as a predictor of academic achievement in ESL teacher education. Journal of Language Studies, Vol. 13(1), 99–-111.
Kaliyadan, F., Thalamkandathil, N., Parupalli, S. R., Amin, T. T., Balaha, M. H., & Ali, W. H. A. B. (2015). English language proficiency and academic performance: A study of a medical preparatory year program in Saudi Arabia. Avicenna jJournal of mMedicine, 5(4), 140–xxx.
Kaur, N. (2006). Non-autonomy and low-English proficiency among Malaysian students: Insights from multiple perspectives. In K. Ariffin, M. Rozaidi Ismail, N. K. Leng, & R. A. Aziz (Eds.), English in the Malaysian context (pp. 21–-34). Shah Alam, Malaysia: University Publication Center (UPENA) UiTM.
Kerstjens, M., & Nery, C. (2000). Predictive validity in the IELTS test: A study of the relationship between IELTS scores and students’ subsequent academic performance. In A. Editor (Ed.), International English Language Testing System (IELTS) research reports 2000: (Volume 3, pp. 85–xx). Melbourne: Publisher.
Kirkpatrick, A. (2011). English as a medium of instruction in Asian education (from primary to tertiary): Implications for local languages and local scholarship. Applied Linguistics Review, 2, 99–-120.
Kyeyune, R. (2003). Challenges of using English as a medium of instruction in multilingual contexts: A view from Ugandan classrooms. Language Culture and Curriculum, 16(2), 173–-184.
Laidra, K., Pullmann, H., & Allik, J. (2007). Personality and intelligence as predictors of academic achievement: A cross-sectional study from elementary to secondary school. Personality and Individual Differences, 42(3), 441–-451.
Laufer, B., Elder, C., Hill, K., & Congdon, P. (2004). Size and strength: Do we need both to measure vocabulary knowledge? Language Testing, 21(2), 202–-226.
Lemmouh, Z. (2008). The relationship between grades and the lexical richness of student essays. Nordic Journal of English Studies, 7(3), 163–-180.
Maleki, A., & Zangani, E. (2007). A survey on the relationship between English language proficiency and the academic achievement of Iranian EFL students. Asian EFL Journal, 9(1), 86–-96.
Masrai, A., & Milton, J. (2017). Recognition vocabulary knowledge and intelligence as predictors of academic achievement in an EFL context. TESOL International Journal, 12(1), 128–-142.
Messick, S. (1995). Standards of validity and the validity of standards in performance assessment. Educational mMeasurement: Issues and pPractice, 14(4), 5–-8.
Milton, J. (2013). Measuring the contribution of vocabulary knowledge to proficiency in the four skills. In C. Bardel, C. Lindqvist, & B. Laufer (Eds.) L2 Vocabulary Acquisition, Knowledge and Use: New Perspectives on Assessment and Corpus Analysis (pp. 57-78). ): EUROSLA monograph 2.
Milton, J., & Treffers-Daller, J. (2013). Vocabulary size revisited: The link between vocabulary size and academic achievement. Applied Linguistics Review, 4(1), 151–-172.
Ministry of Higher Education Malaysia. (2015). Executive summary of Malaysian education blueprint 2015–-2025 (Higher Education). Putrajaya, Malaysia: Ministry of Education Malaysia.
Morris, L., & Cobb, T. (2004). Vocabulary profiles as predictors of the academic performance of teaching English as a second language trainees. System, 32(1), 75–-87.
Musa, N. C., Lie, K. Y., & Azman, H. (2012). Exploring English language learning and teaching in Malaysia. GEMA Online® Journal of Language Studies, 12(1), 35–-51.
Nagy, W., & Townsend, D. (2012). Words as tools: Learning academic vocabulary as language acquisition. Reading Research Quarterly, 47(1), 91–-108.
Nation, I. S. (2013). Learning vocabulary in another Language Google eBook. Cambridge, UK: Cambridge University Press.
Nation, I. S. P. (2012). The BNC/COCA word family lists. Retrieved 17 September, 2012, from http://www.victoria.ac.nz/lals/about/staff/publications/paul-nation/Information-on-the-BNC_COCAword-family-lists.pdf.
Nation, I. S. P., & Beglar, D. (2007). A vocabulary size test. The Language Teacher, 31 (7), (9–-13).
Nation, P. (2000). Learning vocabulary in lexical sets: Dangers and guidelines. TESOL Journal, 9(2), 6–-10.
Nation, P. (2017). How vocabulary is learned. Indonesian JELT, 12(1), 1–-14.
Nopiah, Z. M., Ismail, N. A., Khatimin, N., Abdullah, S., & Mustafa, M. M. (2011). MUET score and loadings hour: An analysis on the relationship towards academic performance. Procedia-Social and Behavioral Sciences, 18, 103–-109.
Oliver, R., Vanderford, S., & Grote, E. (2012). Evidence of English language proficiency and academic achievement of non-English-speaking background students. Higher Education Research & Development, 31(4), 541–-555.
Othman, J., & Nordin, A. B. (2013). MUET as a predictor of academic achievement in ESL teacher education. GEMA: Online Journal of Language Studies, 13(1), 99–-111.
Paiman, N., Thai, Y. N., & Yuit, C. M. (2015). Effectiveness of morphemic analysis of Graeco-Latin word parts as a vocabulary learning strategy among ESL learners. 3L: The Southeast Asian Journal of English Language Studies, 21(2), 31–-45.
Rahmat, N., Min, L. S., Sungif, N. A. M., & Yusup, F. N. M. (2015). English language proficiency tests and academic achievement: A study on the Malaysian University English Test as a predictor of technical programme undergraduates’ academic achievement. Advances in Language and Literary Studies, 6(1), 114–-119.
Rashid, R. A., Abdul Rahman, S. B., & Yunus, K. (2017). Reforms in the policy of English language teaching in Malaysia. Policy Futures in Education, 15(1), 100–-112.
Rethinasamy, S., & Chuah, K. M. (2011). The Malaysian University English Test (MUET) and its use for placement purposes: A predictive validity study. Electronic Journal of Foreign Language Teaching, 8(2), 234–-245.
Rimfeld, K., Kovas, Y., Dale, P. S., & Plomin, R. (2016). True grit and genetics: Predicting academic achievement from personality. Journal of pPersonality and sSocial pPsychology, 111(5), 780–XXX.
Roche, T., & Harrington, M. (2013). Recognition vocabulary knowledge as a predictor of academic performance in an English as a foreign language setting. Language Testing in Asia, 3(1), 1–-13.
Sahragard, R., Baharloo, A., & Soozandehfar, S. M. A. (2011). A closer look at the relationship between academic achievement and language proficiency among Iranian EFL students. Theory and Practice in Language Studies, 1(12), 1740–-1748.
Samad, A., Rahman, S. Z. S. A., Norbaiti, S. (2008). Refining English language tests for university admission: A Malaysian example. Asian Journal of University Education, Faculty of Education, 4(1) 57–-68.
Schmitt, N. (2014). Size and depth of vocabulary knowledge: What the research shows. Language Learning, 64(4), 913–-951.
Singh, M. K. M., & Choo, J. C. S. (2012). Manufacturing industry employers’ perception of graduates’ English language skills proficiency. International Journal of Applied Linguistics and English Literature, 1(4), 114–-124.
Su, M. T., & Ow, S. H. (2004). A study on the factors that impact on the academic performance of the computer science and the information technology students in University of Malaya. CMU. Journal, 3(2), 169–-184.
Tung, P., Lam, R., & Tsang, W. K. (1997). English as a medium of instruction in post-1997 Hong Kong: What students, teachers, and parents think. Journal of Pragmatics, 28(4), 441–-459.
Webb, S., & Nation, P. (2017). How vocabulary is learned. Oxford: Oxford University Press.
Yixin, W., & Daller, M. (2014, September). Predicting Chinese students’ academic achievement in the UK. In A. Editor, B. Editor, C. Editor & D. Editor (Eds.), Proceedings of the 47th Annual Meeting of the British Association for Applied Linguistics:Learning, working and communicating in a global context (pp. 217–-227). Publisher.
Zainoor, M. A. (2014, December) English placement test as a predictor of academic performance among ESL undergraduate students. Paper presented at the International Conference on Language, Literature, Culture, and Education, Kuala Lumpur. ICLLCE 2014-36. Retrieved from http://icsai.org/procarch/1icllce/1icllce-36.pdf.
Zhao, P., & Ji, X. (2018). Validation of the Mandarin version of the Vocabulary Size Test. RELC Journal, 49(3), 308-321.