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toffee · 2023年04月30日

如果这道题加一个conservative bias的话,那选哪个?

NO.PZ2022052202000001

问题如下:

Jun Park, CFA, works at a hedge fund. Most of Park’s colleagues are also CFA charterholders. At an event with recent university graduates, Park comments, “Most CFA charterholders work at hedge funds.”

Park’s remark exhibits which behavioral bias?

选项:

A.

Availability

B.

Conservatism

C.

Framing

解释:

A is correct. Park is extrapolating his observation based on a narrow range of experience (working at a hedge fund that employs many CFA charterholders) to the entire population of CFA charterholders. Using a narrow range of experience is a form of availability bias.

感觉好像也是小样本的问题

1 个答案

王琛_品职助教 · 2023年05月04日

嗨,爱思考的PZer你好:


1

同学所说的偏差,就是选项 B 哈

我理解同学是想辨析 Conservatism 和 Representativeness,后者有两种类型,其中之一是 Sample-Size Neglect,即根据小样本做决策,认为小样本可以代替总体

2

一般情况下,如果考查上述两个偏差的辨析,题目都有 base info. 和 new info. 哈

同学可以参考一下经典题 R1 的 1.2 和 1.4 题的题干表述

3

本题考查的是 Availability 的四个来源之一,了解一下即可

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