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Principle of Equivalence01:18

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According to Albert Einstein (1897-1955), free-falling and feeling weightless are intrinsically linked. If a person were in free-fall under gravity, for example, diving towards the Earth from an airplane, they would feel completely weightless. Similarly, a person descending in a lift may feel partially weightless. Broadly speaking, it is assumed that an object in a uniform gravitational field and an object undergoing constant acceleration in the absence of gravity are under the same...
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Related Experiment Video

Updated: May 23, 2026

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Equivalence relations and behavior: an introductory tutorial.

Murray Sidman1

  • 1Sarasota, Florida.

The Analysis of Verbal Behavior
|April 6, 2012
PubMed
Summary
This summary is machine-generated.

Behavior-analytic equivalence experiments demonstrate how arbitrary stimuli can acquire shared meaning. These findings suggest implications for understanding language and cognition through stimulus equivalence.

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Area of Science:

  • Behavior analysis
  • Cognitive science
  • Psychology

Background:

  • The foundational behavior-analytic equivalence experiments established a paradigm for understanding derived stimulus relations.
  • Early research focused on procedural fundamentals to demonstrate equivalence classes.

Purpose of the Study:

  • To briefly describe the original behavior-analytic equivalence experiments.
  • To note subsequent developments and implications of the equivalence paradigm.
  • To explore the significance of these findings for language and cognition.

Main Methods:

  • Review of original behavior-analytic equivalence experiments.
  • Discussion of subsequent developments and implications.

Main Results:

  • The equivalence paradigm was established based on procedural fundamentals.
  • The findings have potential significance for understanding language and cognition.

Conclusions:

  • The behavior-analytic equivalence paradigm offers insights into complex cognitive processes.
  • Further research can explore the implications for language acquisition and cognitive development.