Who is the best judge of a person’s abilities—the person, a knowledgeable informant, or strangers just met in a 3-min speed date? To test this, we collected ability measures as well as self-, informant- and stranger-estimates of verbal, numerical and spatial intelligence, creativity, and intra- and interpersonal emotional competence from 175 young adults. While people themselves were the most accurate about the majority of their abilities, their verbal and spatial intelligence were only estimable by informants or strangers, respectively. These differences in accuracy were not accompanied by differences in the domains’ relevance to people’s self-worth or strangers’ judgment certainty. These results indicate self-other knowledge asymmetries in abilities but raise questions about the reasons behind these asymmetries.

谁是判断一个人能力的最佳人选——这个人、知识渊博的线人，还是在 3 分钟快速约会中刚认识的陌生人？为了测试这一点，我们收集了来自 175 名年轻人的能力测量以及对语言、数字和空间智力、创造力以及人际和人际情感能力的自我、知情人和陌生人的估计。虽然人们自己对自己的大部分能力最准确，但他们的语言和空间智力分别只能由线人或陌生人估计。这些准确性的差异并没有伴随着领域与人们的自我价值或陌生人判断确定性的相关性差异。这些结果表明自我-其他知识在能力上的不对称，但对这些不对称背后的原因提出了质疑。