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MMLU / In a study on the effect of music on worker productivity, employees were told…

Problem

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question

In a study on the effect of music on worker productivity, employees were told that a different genre of background music would be played each day and the corresponding production outputs noted. Every change in music resulted in an increase in production. This is an example of

choices

  1. the effect of a treatment unit.
  2. the placebo effect.
  3. the control group effect.
  4. sampling error.

subject

high_school_statistics

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Source and history

Official source

initial import