Which of the following statements is true?
A)A placebo can have a strong effect on experimental outcomes because the power of suggestion is somehow able to affect the result.
B)Participants in an experiment tend to respond differently than they otherwise would, just because they are in an experiment.
C)The expectations of an experimenter can really influence the results.
D)All of the above.

Question

Quizplus · Accepted Answer

All of the statements are true. A placebo can have a strong effect on experimental outcomes because of the power of suggestion known as the placebo effect. Participants in an experiment may alter their responses because they are aware they are being studied, a phenomenon called the experimenter effect. Lastly, an experimenter's expectations can lead to bias in their interpretation of results, known as the observer-expectancy effect.

Which of the Following Statements Is True