Zero-shot LLM grading of L2 speech transcripts with CEFR descriptors beats a fine-tuned BERT baseline and matches a read-aloud-trained speech model on the S&I Corpus.
Train Type PCC SRC Dev Eval Dev Eval BERT S&I Spont
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Natural Language-based Assessment of L2 Oral Proficiency using LLMs
Zero-shot LLM grading of L2 speech transcripts with CEFR descriptors beats a fine-tuned BERT baseline and matches a read-aloud-trained speech model on the S&I Corpus.