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This study revised the conversion disorder scale, creating a reliable and valid tool for screening children. The new 40-item scale demonstrated strong psychometric properties and effectiveness in identifying conversion disorder.

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Area of Science:

  • Psychiatry
  • Child Psychology
  • Psychometrics

Background:

  • Conversion disorder is a complex condition affecting children.
  • Existing assessment tools may require refinement for accurate diagnosis.
  • Standardized and validated scales are crucial for clinical practice and research.

Purpose of the Study:

  • To revise the existing conversion disorder scale.
  • To establish the psychometric properties of the revised scale.
  • To create a reliable and valid screening tool for conversion disorder in children.

Main Methods:

  • A case-control study involving 240 schoolchildren (120 with conversion disorder, 120 controls).
  • Expert consultation to generate items, followed by expert ratings and empirical validation.
  • Factor analysis was conducted on the finalized 40-item scale.

Main Results:

  • Factor analysis identified five key symptom clusters: swallowing/speech, motor, sensory, weakness/fatigue, and mixed symptoms.
  • The revised scale demonstrated high concurrent validity (0.81) and discriminant validity (p<0.001).
  • Excellent internal consistency (Cronbach's alpha=0.91) and good sensitivity (76%) and specificity (73%) were observed.

Conclusions:

  • The revised conversion disorder scale is a psychometrically sound instrument.
  • The scale is reliable and valid for screening children suspected of having conversion disorder.
  • This tool can aid clinicians in the early identification and management of conversion disorder.