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Principal component analysis: development and initial validation of the mirror effects inventory.

Wing W Y Ho1

  • 1School of Education and Languages, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Kowloon, Hong Kong SAR, China. wyho@hkmu.edu.hk.

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|November 1, 2023
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Summary

Mirroring in groups creates "mirror effects," impacting emotional and behavioral experiences. The new Mirror Effects Inventory (MEI) reliably measures these effects in counseling education.

Keywords:
Counseling educationMirror effects inventoryPrincipal component analysisQualitative analysisQuantitative analysisThematic analysis

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Area of Science:

  • Psychology
  • Social Psychology
  • Counseling Psychology

Background:

  • Mirroring is a group phenomenon where individuals adopt roles observed in others.
  • This process, termed "mirror effects," facilitates acquisition of diverse experiences.
  • A comprehensive scale to measure mirror effects was lacking, prompting the development of the MEI.

Purpose of the Study:

  • To develop and validate the Mirror Effects Inventory (MEI).
  • To measure mirror effects experienced after counseling education.
  • To establish an interpersonal perspective for understanding mirror effects.

Main Methods:

  • A seven-stage mixed-methods approach was employed.
  • Qualitative data from semi-structured interviews (N=24) informed scale construction.
  • Quantitative data from counseling students (N=221) were used for psychometric validation.

Main Results:

  • Principal Component Analysis identified three mirror effect types: general, positive, and negative.
  • The MEI demonstrated good internal consistency (Cronbach's alpha = .88).
  • Increased general mirror effects correlated with increased positive and decreased negative effects, while positive effects also increased negative effects.

Conclusions:

  • The developed MEI is a reliable and valid measure for mirror effects.
  • Findings have implications for counseling education and clinical practice.
  • Further research is needed to clarify conceptual understanding of the MEI.