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AP Research/Unit 2 – Understand and Analyze
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Participant Awareness as a Research Limitation
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If participants are aware they’re being observed in a study, what potential limitation should be addressed?

A

The placebo effect where participants experience benefits from non-active components of an intervention.

B

Sampling bias where certain groups are overrepresented within the sample population.

C

Observer bias where researchers’ expectations influence their interpretation of results.

D

The Hawthorne effect where participants alter their behavior due to awareness of being observed.

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