e

Experimenter Bias: Why Your Data Lies to You

By Mohammed looti / / 1 min read
Scientifically Reviewed · Dr. Marwa Abd-Alazim · August 17, 2026
Medically & Scientifically Reviewed Verified: August 17, 2026
Dr. Marwa Abd-Alazim Ph.D.
Professor of Psychology • University of Kerbala
Review Criteria & Clinical Standards

This content undergoes rigorous scientific peer-review and medical editorial standards at Arab Psychology Network to ensure clinical accuracy, validity, and compliance with evidence-based guidelines from leading psychological and healthcare authorities (APA / WHO).

Experimenter Bias: Why Your Data Lies to You

An error by the investigator in the perception or recording of data.

EXPERIMENTER OBSERVER EFFECT: “In the experimenter observer effect Joe incorrectly recorded the numbers in the wrong column.”
★

Rate This Content

5.0 / 5 • 1 vote

About the Author: Mohammed looti

Website

Cite This Article

looti, M. (2026, August 17). Experimenter Bias: Why Your Data Lies to You. Encyclopedia of psychology. https://encyclopedia.arabpsychology.com/experimenter-observer-effect/
looti, Mohammed. “Experimenter Bias: Why Your Data Lies to You.” Encyclopedia of psychology, 17 August 2026, https://encyclopedia.arabpsychology.com/experimenter-observer-effect/.
looti, Mohammed. “Experimenter Bias: Why Your Data Lies to You.” Encyclopedia of psychology. August 17, 2026. https://encyclopedia.arabpsychology.com/experimenter-observer-effect/.

Related Articles