The Claim
Immediate and delayed corrective feedback from an LLM chatbot produce statistically equivalent gains in grammatical accuracy among adult L2 English learners, as measured by the ability to identify and correct previously made errors in a post-intervention assessment.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Adults learning English as a second language show the same improvement in grammar accuracy after receiving immediate feedback from an LLM chatbot as they do after receiving delayed feedback, based on their ability to correct past errors in a test.
See the scientific wording
Immediate and delayed corrective feedback from an LLM chatbot produce statistically equivalent gains in grammatical accuracy among adult L2 English learners, as measured by the ability to identify and correct previously made errors in a post-intervention assessment (mean scores: 3.14 vs. 2.18, p=0.092, Cohen’s d=0.37) across 53 participants.
When a learner makes a grammar mistake and receives feedback, the brain records the pattern of the error and its correction. Whether the feedback comes right away or later, the brain still links the mistake to the correct form. This connection strengthens over time, making it easier to recognize and fix the same mistake later.
What the research says
1 studyThe study found that whether the chatbot corrects your grammar mistakes right away or after the conversation, adult learners improved about the same in spotting and fixing those mistakes later. So, timing doesn’t really matter for learning grammar in this case.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
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