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Experimenter Bias

A Natural Bias

❶By Jessica Alleva Ph. In qualitative research, the scope for bias is wider and much more subtle, and the researcher must be constantly aware of the problems.

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Research bias, also called experimenter bias, is a process where the scientists performing the research influence the results, in order to portray a certain outcome.

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A bias is a tendency, inclination, or prejudice toward or against something or someone. Some biases are positive and helpful, such as choosing to eat foods that are considered healthy, or staying away from someone who has knowingly caused harm.

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Hindsight bias occurs in psychological research when researchers form “post hoc hypotheses.” When a researcher obtains a certain result that is counter to what he or she originally predicted, the researcher may use post hoc hypotheses to revise their prediction to fit the actual, obtained result. In research, an experimenter bias, also known as research bias, occurs when a researcher unconsciously affects results, data, or a participant in an experiment due to subjective influence. It is difficult for humans to be entirely objective which is not being influenced by personal emotions, desires.

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Overview This lesson works well in the introductory unit after students have been introduced to the idea of the scientific approach in psychology (see other lesson idea here). Aim The aim of this lesson is to introduce students to the process of thinking critically about research methodology and how researcher bias may influence "research.". When explaining the effects of participant expectations and researcher bias in qualitative research studies, it is important to consider the particular details of the study in question. Like with other topics of study in qualitative research, you should be able to apply some knowledge of quantitative methods (such as demand characteristics and social .