Corrective Feedback and L2 Vocabulary Development: Prompts and Recasts in the Adult ESL Classroom
Why this work is in the frame
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Bibliographic record
Abstract
This study investigates the effects of corrective feedback in the form of prompts and recasts on second language vocabulary development. The study employed pre-test/post-test/delayed post-test design. Intermediate adult ESL learners (N = 23) in a community college located in the southwestern United States were categorized into three groups: prompts, recasts, and control. The treatment consisted of a four-step vocabulary activity during which either prompts, recasts, or no feedback was provided. The outcomes were tested using measures based on a three-dimensional L2 vocabulary development model. The findings appear to indicate that prompts and recasts were equally beneficial in the short term and that prompts were slightly more advantageous in the longer term. However, the prompts group was the only one that demonstrated significant increases over time on all three dimensions of vocabulary development as they were operationalized for this study.
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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 | 0.001 | 0.001 |
| 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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