June 1991 LSAT Section 3 Question 23

A medical journal used a questionnaire survey to determine whether a particular change in its format would increase i...

MelissaToribio on January 11, 2023

Biased Sample

Hello, Could someone explain why this is a biased sample and not an unrepresentative sample? After reading the stimulus I thought that it featured an unrepresentatie sample because current readers preferences are unrepresentative of potential readers preferences.

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Emil-Kunkin on January 15, 2023

Hi, a biased sample is a reason that a sample can be unrepresentative. Generally speaking, non representative means that the sample does not match the population about which the author makes an inference. One reason for this could be that the sample is biased.