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Two corpora totaling 1,188,512 tokens are analyzed to estimate vocabulary size required for 90% and 95% word-family coverage, including word families and categories such as proper nouns, marginal words, transparent compounds, and acronyms. Results show coverage thresholds at 2,000/3,000 word families (plus specified categories) for 90% and 95%, with EAL requiring fewer word families than general-audience at both thresholds. Frequency patterns suggest many mid-level word families are repeatedly encountered, supporting incidental acquisition. 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Two corpora (i.e., one EALand one general-audience) comprising 1,188,512 tokens were analyzed to determine the necessary vocabulary knowledge to reach 90% and 95% coverage. The results indicated that 2,000 and 3,000 word families plus proper nouns (PN), marginal words (MW), transparent compounds (TC), and acronyms (AC) covered 90% and 95% of words in podcasts, respectively. The results also showed that EAL and general-audience podcasts required 1,000 and 2,000 words families to reach 90% coverage, respectively. Regarding 95% coverage, knowledge of 2,000 (EAL) and 3,000 (general-audience) word families was required. The results also demonstrated almost 60% of word families from the 2,000-word level were encountered 15+ times in each corpus, suggesting podcasts may hold relatively great potential for learning such words incidentally. Furthermore, our findings indicated that there was some potential for incidentally learning words from the 3,000-word level in both corpora, while general-audience podcasts may hold greater potential in this regard. Implications for using podcasts in language pedagogy are also discussed. |\n| --- | --- |\n| Publisher(s)\u003Cbr>University of New Brunswick\u003Cbr>ISSN\u003Cbr>1920-1818 (digital)\u003Cbr>Explore this journal |  |\n| Cite this article\u003Cbr>Motamedynia, M. & Nasrollahi Shahri, N. (2022). Investigating the Lexical Demands of English-as-an-Additional-Language and General-Audience Podcasts and Their Potential for Incidental Vocabulary Learning. Canadian Journal of Applied Linguistics / Revue canadienne de linguistique appliquée, 25(2), 103–131. [https://doi.org/10.37213/cjal.2022.32746](https://doi.org/10.37213/cjal.2022.32746) |  |\n| Copyright © Masoud Motamedynia, Naseh Nasrollahi Shahri, 2022 This document is protected by copyright law. Use of the services of Érudit\u003Cbr>(including reproduction) is subject to its terms and conditions, which can be viewed online.\u003Cbr>[https://apropos.erudit.org/en/users/policy-on-use/](https://apropos.erudit.org/en/users/policy-on-use/)\u003Cbr>|  |\n\nThis article is disseminated and preserved by Érudit.  \nÉrudit is a non-profit inter-university consortium of the Université de Montréal, Université Laval, and the Université du Québec à Montréal. Its mission is to promote and disseminate research.  \n[https://www.erudit.org/en/](https://www.erudit.org/en/)  \nCJAL * RCLA Motamedynia & Nasrollahi Shahri 103  \nInvestigating the Lexical Demands of English-as-an-Additional-Language and General-Audience Podcasts and Their Potential for Incidental  \nVocabulary Learning  \nMasoud Motamedynia  \nUniversity of Tehran  \nNaseh Nasrollahi Shahri  \nSan Diego State University  \nAbstract  \nThis study investigated the lexical demands of English-as-an-additional-language (EAL) and general-audience podcasts and their potential for incidental vocabulary learning. Two corpora (i.e., one EAL and one general-audience) comprising 1,188,512 tokens were analyzed to determine the necessary vocabulary knowledge to reach 90% and 95% coverage. The results indicated that 2,000 and 3,000 word families plus proper nouns (PN), marginal words (MW), transparent compounds (TC), and acronyms (AC) covered 90% and 95% of words in podcasts, respectively. The results also showed that EAL and general-audience p","cbCaipMsKtJU8VLb","https://ap.wps.com/l/cbCaipMsKtJU8VLb","pdf",581643,"English","# Abstract\n## Research question and method\n## Vocabulary coverage thresholds (90% and 95%)\n## Incidental learning potential and implications","[{\"question\":\"What was the goal of the study on podcasts?\",\"answer\":\"The study investigated the lexical demands of EAL and general-audience podcasts and their potential for incidental vocabulary learning.\"},{\"question\":\"How were the corpora analyzed in terms of vocabulary knowledge?\",\"answer\":\"Two corpora totaling 1,188,512 tokens were analyzed to determine the vocabulary knowledge needed to reach 90% and 95% coverage.\"},{\"question\":\"What vocabulary sizes are needed for 90% and 95% coverage?\",\"answer\":\"For podcasts overall, 2,000 word families plus proper nouns and related word categories supported 90% coverage, while 3,000 word families plus those categories supported 95% coverage. EAL and general-audience podcasts differed in required word-family sizes at each threshold.\"}]","Investigating the Lexical Demands of English-as-an-Additional-Language and General-Audience Podcasts - Potential for Incidental Vocabulary Learning | PDF",76]