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The John Henry effect is an experimental bias introduced into social experiments by reactive behavior by the control group.
The John Henry Effect refers to the tendency for people based in a control group to perceive themselves at a disadvantage to the experimental group and work harder in order to overcome the perceived deficiency.
Jun 22, 2024 · Overview. John Henry effect. Quick Reference. A tendency for members of the control group in certain experiments to adopt a competitive attitude towards the experimental group, thereby negating their status as controls.
John Henry effect is an experimental bias characterized by the control group’s unconscious or conscious reactive behavior. This is caused by the research participants’ awareness that they are a part of the control group and that when compared with the experimental group, may be perceived as a disadvantage.
The John Henry effect is a phenomenon in which people respond to automation with increased effort and productivity in an effort to remain indispensable. It is a powerful metaphor for the human struggle against automation and has become an important concept in business and labor relations.
THE JOHN HENRY EFFECT: POTENTIAL CONFOUNDER OF EXPERIMENTAL vs CONTROL. 1-1. CD. HES TO THE EVALUATION OF EDUCATIONAL INN. Gary Saretsky. Center for Evaluation, Research and Development. Phi Delta Kappa International. The paper describes an unacknowledged artifact that may confound.
May 25, 2023 · Summary. As social and behavioral scientists, it is of fundamental importance to understand the factors that drive the behaviors that we measure. Careful design is thus required to minimize the influence of extraneous factors. Yet, we often overlook one major class of such extraneous factors – those related to us, the experimenters.
The term John Henry effect was coined to explain the unexpected outcome of an experiment caused by the control group's knowledge of its role within the experiment.
John Henry effect is an experimental bias characterized by the control group’s unconscious or conscious reactive behavior. This is caused by the research participants’ awareness that they are a part of the control group and that when compared with the experimental group, may be perceived as a disadvantage.
Apr 2, 2013 · The John Henry effect. The “Ballad of John Henry” tells of the legendary black American steel pin driver, John Henry, who swung a huge nine pound hammer driving railroad spikes on the Chesapeake and Ohio railway in the 1870s. 1 John Henry was renowned for his strength among his fellow workers and could drive a steel pin into a ...
