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experiment

experiment An experiment is a way of gaining knowledge by deliberately changing conditions or the way phenomena are observed.

An experiment is a way of gaining knowledge by deliberately changing conditions or the way phenomena are observed. In psychology, it is presented as a special form of observation in which the observer intentionally interferes with the course of what is being studied to reduce accidental influences and test conclusions against the facts.

Also see

Sources

Drafting source: Baldwin Dictionary of Philosophy and Psychology, 1901. 1901 New York Macmillan original; archive index checked 2026-10-18. “Experiment” (Experiment).
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PsychTerms (psychterms.org), CC BY 4.0, version 1. “experiment.” Development preview.

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