Unverified50% confidenceFactExact time
存在'MTurk效应'——平台活跃的'职业被试'群体往往更年轻、受教育程度更高、政治倾向更自由，与普通人群存在显著差异，导致研究结论外部效度受质疑
1
Sources
50%
Confidence
Long-term
Relevance
7/8/2026
First Seen
Sources
Amazon MTurk Closes to New Customers: The End of the Crowdsourcing Era and the AI Revolution
hackernewshackernews7/3/2026
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