The Hawthorne effect and placebo effect are examples of reactivity.

Question

Quizplus · Accepted Answer

Both the Hawthorne effect (where individuals modify an aspect of their behavior in response to their awareness of being observed) and the placebo effect (where individuals experience a perceived improvement in condition due to their expectations, rather than any active component of a treatment) are examples of reactivity, as they involve changes in behavior or perception in response to the awareness of being part of a study or treatment.

The Hawthorne Effect and Placebo Effect Are Examples of Reactivity