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In which situation can a blind test reduce bias?

Answer and explanation

Correct answer: When the observer is not told which sample belongs to the treatment group

Not knowing group identity can reduce expectation based observation bias. Apply the same measurement rules to both groups.

Related tags

Blind-TestObserver-BiasTreatment-GroupObjectivityHypothesis And ExperimentationExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScience

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