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Record W3186587134 · doi:10.22215/etd/2021-14594

Lexical Coverage in Bangladeshi EFL Textbooks: A Corpus-Based Study

2021· dissertation· en· W3186587134 on OpenAlexaff
M. O. Ahmed

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldPsychology
TopicSecond Language Acquisition and Learning
Canadian institutionsCarleton University
Fundersnot available
KeywordsVocabularyEnglish as a foreign languageEnglish vocabularyTransition (genetics)LinguisticsEnglish languageVocabulary learningForeign languageVocabulary developmentPsychologyComputer scienceMathematics educationChemistry

Abstract

fetched live from OpenAlex

Textbooks are a crucial tool in English as a foreign language (EFL) contexts where out-ofthe-classroom use of English is minimal.Vocabulary is an essential component of language learning; thus, EFL textbooks should sufficiently represent vocabulary needed for students' academic success.Due to the growing demand for English proficiency locally and internationally, Bangladeshi EFL textbooks' lexical coverage is examined to determine if vocabulary input is aiding students in their K-12 education and their transition to higher education.A corpus-based analysis of the Bangladeshi K-12 textbooks' vocabulary has been conducted, and the vocabulary of university textbooks is compared to the K-12 vocabulary.Results demonstrate that the transitions to academic stages are not easy, as the lexical input found in early-grade textbooks leaves significant gaps in vocabulary found in textbooks of the later grades, and similar results were found in the transition to tertiary levels.Pedagogical implications and recommendations are also discussed.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.009
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.018
Threshold uncertainty score0.035

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.009
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0050.009
Science and technology studies0.0010.001
Scholarly communication0.0020.001
Open science0.0010.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0040.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.020
GPT teacher head0.348
Teacher spread0.329 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations2
Published2021
Admission routes1
Has abstractyes

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Same topicSecond Language Acquisition and LearningFrench-language works237,207