{"id":35834,"topic":"ai","source":"South China Morning Post","title":"Using AI could reduce exam scores by a fifth, a study on Chinese students finds - South China Morning Post","url":"https://www.scmp.com/news/china/science/article/3360396/ai-homework-tools-cut-exam-scores-20-study-26000-chinese-students-finds","url_hash":"80dc42b0f7854a006f4ed3e352f89ce4069e040c","author":"","summary":"<a href=\"https://news.google.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?oc=5\" target=\"_blank\">Using AI could reduce exam scores by a fifth, a study on Chinese students finds</a>&nbsp;&nbsp;<font color=\"#6f6f6f\">South China Morning Post</font>","content":null,"image_url":null,"lang":"en","published_at":"2026-07-14T01:00:08+00:00","fetched_at":"2026-07-14T01:15:05+00:00","status":"read","starred":0,"extract_state":"failed","summary_auto":null,"cluster_id":null,"extract_retries":2,"extract_error":"trafilatura_none","contract_version":"news_item.v1","format_contract_version":"news_item_formats.v1","dedup_url":"https://www.scmp.com/news/china/science/article/3360396/ai-homework-tools-cut-exam-scores-20-study-26000-chinese-students-finds","quality_profile":{"profile_version":"extraction_quality.v2","bucket":"low","confidence":0.2,"failure_kind":"extractor_empty","retryable":false,"retry_after_attempts":0,"reason":"Low confidence: extractor returned no usable article text.","operator_guidance":{"severity":"warning","recommended_action":"use_summary_with_caveat","next_step":"Use the available summary only with a visible quality caveat.","operator_label":"Use summary with caveat","can_retry":false,"can_use_summary":true,"diagnostics_required":true},"content_depth":{"contract_version":"content_depth.v1","category":"summary_only","label":"Summary only","has_full_text":false,"has_summary":true,"content_length":0,"summary_length":757,"usable_text_length":757,"source_field":"summary"},"legacy_collapsed":false,"signals":{"extract_state":"failed","extract_error":"trafilatura_none","extract_retries":2,"content_length":0,"summary_length":757}},"news_item":{"id":35834,"canonical_url":"https://www.scmp.com/news/china/science/article/3360396/ai-homework-tools-cut-exam-scores-20-study-26000-chinese-students-finds","source_url":"https://www.scmp.com/news/china/science/article/3360396/ai-homework-tools-cut-exam-scores-20-study-26000-chinese-students-finds","title":"Using AI could reduce exam scores by a fifth, a study on Chinese students finds - 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