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Related Experiment Video

Updated: Aug 10, 2025

Validation of a Psychosocial Intervention on Body Image in Older People: An Experimental Design
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A novel ego dissolution scale: A construct validation study.

Fiona G Sleight1, Steven Jay Lynn1, Richard E Mattson1

  • 1Psychology Department, Binghamton University (SUNY), Binghamton, NY 13905, USA.

Consciousness and Cognition
|February 10, 2023
PubMed
Summary
This summary is machine-generated.

Researchers created a new scale to measure ego dissolution, a state of losing one's sense of self. This tool, the Ego Dissolution Scale (EDS), will aid future studies on consciousness and self-perception.

Keywords:
DissociationEgo deathEgo disintegrationEgo dissolutionMystical experiencesSelf-transcendent experiences

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Area of Science:

  • Psychology
  • Neuroscience
  • Consciousness Studies

Background:

  • Ego dissolution, characterized by a diminished sense of self, is a complex psychological state.
  • Previous research has limited tools to quantify trait-like aspects of ego dissolution.
  • Understanding ego dissolution is crucial for various fields, including personality and psychopathology.

Purpose of the Study:

  • To develop and validate a reliable scale for measuring ego dissolution.
  • To assess trait-like individual differences in ego dissolution.
  • To facilitate future research across diverse psychological contexts.

Main Methods:

  • Development of a novel 10-item Ego Dissolution Scale (EDS).
  • Assessment of internal consistency using Cronbach's alpha for the scale and its subfactors.
  • Evaluation of convergent and discriminant validity against established psychological measures.

Main Results:

  • The 10-item EDS demonstrated strong internal consistency (Cronbach's α = 0.80).
  • Subfactors Ego-Loss (α = 0.84) and Unity (α = 0.75) also showed good internal consistency.
  • The EDS exhibited robust convergent and discriminant validity, correlating with related constructs while remaining distinct.

Conclusions:

  • The Ego Dissolution Scale (EDS) is a valid and reliable instrument for measuring ego dissolution.
  • The EDS can be used to study individual differences in ego dissolution across various psychological domains.
  • Ego dissolution and dissociation are empirically related but statistically distinct phenomena.