Investigating vocabulary in academic spoken English: Corpora, teachers, and learners

<p>Understanding academic spoken English is challenging for second language (L2) learners at English-medium universities. A lack of vocabulary is a major reason for this difficulty. To help these learners overcome this challenge, it is important to examine the nature of vocabulary in academic spoken English. This thesis presents three linked studies which were conducted to address this need. Study 1 examined the lexical coverage in nine spoken and nine written corpora of four well-known general high-frequency word lists: West’s (1953) General Service List (GSL), Nation’s (2006) BNC2000, Nation’s (2012) BNC/COCA2000, and Brezina and Gablasova’s (2015) New-GSL. Study 2 further compared the BNC/COCA2000 and the New-GSL, which had the highest coverage in Study 1. It involved 25 English first language (L1) teachers, 26 Vietnamese L1 teachers, 27 various L1 teachers, and 275 Vietnamese English as a Foreign Language learners. The teachers completed 10 surveys in which they rated the usefulness of 973 non-overlapping items between the BNC/COCA2000 and the New-GSL for their learners in a five-point Likert scale. The learners took the Vocabulary Levels Test (Nation, 1983, 1990; Schmitt, Schmitt, & Clapham, 2001), and 15 Yes/No tests which measured their knowledge of the 973 words. Study 3 involved compiling two academic spoken corpora, one academic written corpus, and one non-academic spoken corpus. Each contains approximately 13-million running words. The academic spoken corpora contained four equally-sized sub-corpora. From the first academic spoken corpus, 1,741 word families were selected for the Academic Spoken Word List (ASWL). The coverage of the ASWL and the BNC/COCA2000 in the four corpora and the potential coverage of the ASWL for learners of different vocabulary levels were determined. Six main findings were drawn from these studies. First, in the first academic spoken corpus, the ASWL and its levels had slightly higher coverage in certain disciplinary sub-corpora than in the others. Yet, the list provided around 90% coverage of each sub-corpus. It helps learners to achieve 92%-96% coverage of academic speech depending on their levels. Second, the BNC/COCA2000 is the most suitable general high-frequency word list for L2 learners from the perspectives of corpus linguistics, teachers, and learners. It provided higher coverage than the GSL and the BNC2000, and had more words known by learners and perceived as being useful by teachers than the New-GSL. Third, general high-frequency words, especially the most frequent 1,000 words, provided much higher coverage in spoken corpora than written corpora in both academic and non-academic discourse. Fourth, despite the importance of general high-frequency words, a reasonable proportion of the learners had insufficient knowledge of these words, which highlights the importance of a word list which is adaptable to learners’ proficiency like the ASWL. Fifth, lexical coverage had significant but small correlations with teacher perception of word usefulness and learner vocabulary knowledge. Sixth, the Vietnamese L1 teachers had the highest correlation between the teacher ratings of word usefulness and the learner vocabulary knowledge. Next came the various L1 teachers, and then the English L1 teachers. This thesis also provides theoretical, pedagogical, and methodological implications of these findings so that L2 learners can gain better support in their vocabulary development and achieve better comprehension of academic spoken English.</p>

Investigating vocabulary in academic spoken English: Corpora, teachers, and learners

<p>Understanding academic spoken English is challenging for second language (L2) learners at English-medium universities. A lack of vocabulary is a major reason for this difficulty. To help these learners overcome this challenge, it is important to examine the nature of vocabulary in academic spoken English. This thesis presents three linked studies which were conducted to address this need. Study 1 examined the lexical coverage in nine spoken and nine written corpora of four well-known general high-frequency word lists: West’s (1953) General Service List (GSL), Nation’s (2006) BNC2000, Nation’s (2012) BNC/COCA2000, and Brezina and Gablasova’s (2015) New-GSL. Study 2 further compared the BNC/COCA2000 and the New-GSL, which had the highest coverage in Study 1. It involved 25 English first language (L1) teachers, 26 Vietnamese L1 teachers, 27 various L1 teachers, and 275 Vietnamese English as a Foreign Language learners. The teachers completed 10 surveys in which they rated the usefulness of 973 non-overlapping items between the BNC/COCA2000 and the New-GSL for their learners in a five-point Likert scale. The learners took the Vocabulary Levels Test (Nation, 1983, 1990; Schmitt, Schmitt, & Clapham, 2001), and 15 Yes/No tests which measured their knowledge of the 973 words. Study 3 involved compiling two academic spoken corpora, one academic written corpus, and one non-academic spoken corpus. Each contains approximately 13-million running words. The academic spoken corpora contained four equally-sized sub-corpora. From the first academic spoken corpus, 1,741 word families were selected for the Academic Spoken Word List (ASWL). The coverage of the ASWL and the BNC/COCA2000 in the four corpora and the potential coverage of the ASWL for learners of different vocabulary levels were determined. Six main findings were drawn from these studies. First, in the first academic spoken corpus, the ASWL and its levels had slightly higher coverage in certain disciplinary sub-corpora than in the others. Yet, the list provided around 90% coverage of each sub-corpus. It helps learners to achieve 92%-96% coverage of academic speech depending on their levels. Second, the BNC/COCA2000 is the most suitable general high-frequency word list for L2 learners from the perspectives of corpus linguistics, teachers, and learners. It provided higher coverage than the GSL and the BNC2000, and had more words known by learners and perceived as being useful by teachers than the New-GSL. Third, general high-frequency words, especially the most frequent 1,000 words, provided much higher coverage in spoken corpora than written corpora in both academic and non-academic discourse. Fourth, despite the importance of general high-frequency words, a reasonable proportion of the learners had insufficient knowledge of these words, which highlights the importance of a word list which is adaptable to learners’ proficiency like the ASWL. Fifth, lexical coverage had significant but small correlations with teacher perception of word usefulness and learner vocabulary knowledge. Sixth, the Vietnamese L1 teachers had the highest correlation between the teacher ratings of word usefulness and the learner vocabulary knowledge. Next came the various L1 teachers, and then the English L1 teachers. This thesis also provides theoretical, pedagogical, and methodological implications of these findings so that L2 learners can gain better support in their vocabulary development and achieve better comprehension of academic spoken English.</p>

High Frequency Words Produced by Typically Developing Mandarin-Speaking Children Between 3 and 6 Years of Age

The purpose of this study was to provide high frequency word lists for Mandarin-speaking children between 3 and 6 years of age and to explore the differences between each part of speech (POS) category among different age groups. Participants were 209 typically developing native Mandarin speakers aged between 3 and 6 years, born in Taiwan, and recruited from Mandarin-language preschools in Taipei, New Taipei City, and Miaoli. Language samples were collected through conversations, free play, and story retelling. The researchers then transcribed the samples, segment utterances, and words, tagging the POS corresponding to each word. The frequencies of word occurrences were then analyzed and ranked to generate a high frequency word list. The mean frequency of each POS category was calculated to identify significant differences between age groups. The results showed high frequency word lists, including the corresponding POS tagging. Significant differences were found in 10 of the 11 POS categories among age groups. The results of this study presented preliminary information concerning high frequency words produced by Mandarin-speaking children aged between 3 and 6 years and the development of their use of each POS category.

How to write medical abstracts? The rhetorical structure and phrases used in Epidemiology

Introduction: Abstracts are critical in medical contexts. They contain formulaic building blocks called Lexical Frames (LFs), which are high-frequency word sequences with variable slots that can be formed around collocation nodes. LFs are abundant in written academic discourse, and , for this reason, have great importance for the production of abstracts. Extensive research has been conducted on formulaic language, especially on medical genres. Fewer studies, however, have focused on LFs from specialty-specific corpora (.e.g., epidemiology) and their relationship with the rhetorical structure of abstracts. Objective: This study aims to fill this gap by describing the structure of epidemiology abstracts, presenting their rhetorical functions, and identifying the LFs that linguistically realize these functions to help researchers write more conventional abstracts. Methods: We put together three corpora of abstracts in the field, published in English in peer-reviewed journals, and combined genre analysis and Corpus Linguistics principles to identify the linguistic realizations of the rhetorical functions in the texts. First, the rhetorical structure was described; then, the LFs were identified and analyzed. Results: 92% of the texts follow a pre-established pattern, whose structure consists of five to nine sections. Eight saliently frequent nodes (study, result, method, conclusion, review, analysis, patients, and findings) around which the LFs are constructed were identified. Conclusion: Even though both the content and function words that make up the LFs show some variation, it is possible to notice that the LFs elicited typify the linguistic realizations of the corresponding sections' rhetorical functions and, thus, are suitable to the observation of a pattern. For that reason, the data obtained in this study were used to inform the creation of a support framework for the writing of specialty-specific medical abstracts.

Making a little go a long way: A corpus-based analysis of a high-frequency word and some pedagogical implications for young Spanish learners

This study explores the different uses of the word little, its equivalents in Spanish and its teaching to young Spanish learners. First, it aims at analyzing the lexico-grammatical behavior of little in a corpus of children’s short stories, where its prevailing use, preceding countable nouns, has been found to be much more frequent than in other domains and registers. A contrastive study follows, which examines how little has been translated in an English-Spanish parallel corpus; the results show that diminutives constitute an important equivalent. Finally, some didactic implications are proposed, with the application of corpus-based findings to the teaching of English to young Spanish learners from an approach that combines lexical syllabi and story-based methodologies.

Intensive Auditory Comprehension Treatment for Severe Aphasia: A Feasibility Study

BackgroundSevere auditory comprehension impairments secondary to aphasia can adversely influence rehabilitative outcomes and quality of life. Studies examining intensive rehabilitative treatments for severe single-word auditory comprehension impairments are needed.ObjectivesOur purpose was to examine the feasibility and influence of a high-intensity word–picture verification treatment on high-frequency, word response accuracy. Research questions: (a) Can people with severe aphasia tolerate an intensive comprehension treatment? (b) Does an intensive intervention increase auditory comprehension response accuracy of spoken high-frequency words?MethodThis single-case ABA design study included 2 participants with chronic, severe auditory comprehension deficits secondary to stroke. A high-frequency, word–picture verification treatment was administered 2 hr/day, 5 days/week for 4 weeks and required participants to match the spoken word of the examiner to a picture representing an object.ResultsPreliminary results suggest that some people with severe chronic aphasia can tolerate an intensive auditory comprehension treatment and demonstrate improvements in high-frequency, word-level response accuracy with large effect sizes suggesting generalization to untrained stimuli.ConclusionsAn intensive auditory comprehension treatment protocol can contribute to improvements in response accuracy for some people with severe aphasia. Larger sample size studies are needed to further examine the influence of intensity on improvements in auditory comprehension.