When the Right Answer Is Missing

By Jike Zhong, Ming Li and Yuxiang Lai

A paired arithmetic study tests whether Jev can reject a menu when every numerical answer is wrong.

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What it does

Across 100 cases, the authors report 99 correct selections but only 7 correct rejections. Checking each answer through Jev's native yes-or-no probability response works better here than a True/False choice menu. The paper does not identify the exact Jev model tested.

How you can use it

Read the paper's paired three-answer arithmetic examples, where the correct answer is known. Keep the question fixed and compare menus with and without that answer. Compare native yes-or-no probability responses with a True/False choice menu; count a case correct only if all three checks are right. If using probabilities to reject choices, tune the rule on separate examples and count newly wrong selections too.