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In which situation is observer effect likely to influence experimental results?

Answer and explanation

Correct answer: The observer knows which group is expected to perform better and personally classifies vague outcomes

Prior expectation can influence vague classification. Blind testing and clear criteria reduce bias.

Related tags

Observer-EffectExpectation-BiasBlind-TestObjectivityHypothesis And ExperimentationExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScience

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