Surprised by the Hot Hand Fallacy? A Truth in the Law of Small Numbers

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Tác giả: Joshua B Miller, Adam Sanjurjo

Ngôn ngữ: eng

Ký hiệu phân loại: 795.42 Games based chiefly on chance

Thông tin xuất bản: 2019

Mô tả vật lý:

Bộ sưu tập: Metadata

ID: 162595

We prove that a subtle but substantial bias exists in a common measure of the conditional dependence of present outcomes on streaks of past outcomes in sequential data. The magnitude of this streak selection bias generally decreases as the sequence gets longer, but increases in streak length, and remains substantial for a range of sequence lengths often used in empirical work. We observe that the canonical study in the influential hot hand fallacy literature, along with replications, are vulnerable to the bias. Upon correcting for the bias we find that the long-standing conclusions of the canonical study are reversed.
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