Chatbots can improve online political debate, study finds



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Summary

In a field experiment, researchers use real-time phrasing assistance from a language model to improve the quality of discussion in a chat about gun control in the United States. The experiment supports the researchers’ thesis that chatbots could have a positive impact on the culture of debate.

In total, the researchers recruited 1,574 people with different views on US gun control. The participants discussed the issue in an online chat room.

The perfect setting for chaos, anger, and contention? Apparently not when a language model focused on kindness and appreciation supports the discussion.

Two-thirds of AI suggestions accepted

A large language model (GPT-3) reads conversations and suggests alternative wording before the message is sent. The suggestion is intended to make the message more reassuring, validating, or polite.

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Subjects can choose to use the suggested wording, change it, or keep their original message. In total, GPT-3 made 2,742 suggestions for improvement, which were accepted two-thirds of the time, or 1,798 times. A conversation lasted an average of twelve messages, and participants were paid.

At certain intervals, GPT-3 intervenes in the conversation, suggesting alternative phrases for the same argument that are more empathetic to the other person. | Image: Argyle et al.

According to the team, the experiment was prompted in particular by the rapid escalation of debates on digital channels and whether AI can help improve the culture of discussion there.

“Such toxicity increases polarization and corrodes the capacity of diverse societies to cooperate in solving social problems,” the paper says.

Large language models should promote understanding and respect

The results of the experiment support the team’s hypothesis that a language model can improve online discussion culture: According to participating researcher Chris Ryttinga Ph.D. candidate at Brigham Young University, the AI ​​suggestions had “significant effects in terms of decreasing divisiveness and increasing conversation quality, while leaving policy views unchanged.”

The researchers measured these improvements using text analysis of conversations before and after an AI suggestion, as well as a pre- and post-chat questionnaire. A follow-up survey nearly three months after the experiment checked to see if the chatbot interventions had a lasting effect on the subjects, and the team found no anomalies.

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