English
Share
Sign In
Observer-Expectancy Effect
Definition
The Observer-Expectancy Effect refers to the phenomenon in which a researcher's biases influence the behavior of experimental participants. This can result in the researcher's expectations or biases unconsciously distorting the participant's behavior or responses.
Explanation
The Observer-Expectancy Effect is described as follows:
Researcher bias: When a researcher has certain expectations or biases about the behavior or reactions of participants, these expectations can affect the results of the study. For example, if a researcher evaluates one experimental group more positively, this bias can distort the results of the study.
Unconscious influence: The Observer-Expectancy Effect often occurs unconsciously. Researchers can transmit bias to participants through posture, language, and the way they ask questions, even if they do not intend to.
Double-blind design: To address these issues, it is common to use a double-blind study design. In a double-blind study, neither the researcher nor the participants are informed of the experimental conditions, thereby minimizing the influence of external factors.
Research credibility: Research results can be more reliable by minimizing the Observer-Expectancy Effect and conducting fair experiments. It is important for researchers to be aware of their own biases and strictly adhere to the research protocol.
The Observer-Expectancy Effect is an important phenomenon that must be taken into account in research and experiments, and appropriate countermeasures are needed to obtain fair and objective results.
Importance
This phenomenon can reduce the reliability of research results and is a problem that must be taken into consideration for fair and objective research. It is important to minimize the researcher's bias and conduct research under fair conditions to avoid the Observer-Expectancy Effect.
