L1-Spanish Speakers' Acquisition of the English /i /—/I/ Contrast: Duration-based Perception is Not the Initial Developmental Stage
Why this work is in the frame
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Bibliographic record
Abstract
L1-Spanish L2-English listeners' perception of a Canadian-English /bIt//bId/-/bit/-/bid/ continuum was investigated. Results were largely consistent with the developmental stages for L1-Spanish listeners' acquisition of English /i/ and /I/ hypothesized by Escudero (2000): Stage 0, inability to distinguish. Stage 1, duration based. Stage 2, duration and spectral based. Stage 3, L1-English-like primarily spectral based. However, on the basis of the results an additional stage was hypothesized: Stage 1/2, multidimensional-category-goodness-difference assimilation to Spanish /i/, with English vowel tokens perceived as good examples of Spanish /i/ labeled as English /I/ and poor examples labeled as English /i/. It is hypothesized that L1-Spanish listeners' preference for duration cues is not an initial strategy for distinguishing English /i/ and /I/. Rather, it is a secondary developmental stage which emerges from an earlier stage when both spectral and duration cues are used.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it