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A quantitative measure for expressed emotion

M E Lenior1, P M Dingemans, D H Linszen

  • 1Academic Medical Center, University of Amsterdam, Department of Psychiatry, The Netherlands.

Psychiatry Research
|March 3, 1997
PubMed
Summary
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This study refined the Five Minute Speech Sample to better measure expressed emotion in parents of adolescents with schizophrenia. A new scale accurately assesses parental expressed emotion, offering improved quantitative insights.

Area of Science:

  • Psychiatry
  • Psychology
  • Family Studies

Background:

  • Expressed emotion is a key factor in schizophrenia relapse.
  • The Five Minute Speech Sample (FMSS) is used to assess expressed emotion.
  • Previous measures may lack the granularity needed for nuanced analysis.

Purpose of the Study:

  • To develop and validate a robust scale for measuring expressed emotion using the FMSS.
  • To investigate the psychometric properties of FMSS items in parents of adolescents with schizophrenia.
  • To explore the utility of quantitative measures for expressed emotion.

Main Methods:

  • Mokken scale analysis was employed to construct a composite scale from FMSS items.
  • Principal component analysis was used for comparative analysis of subscale configuration.

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  • The study involved 120 parents of adolescents diagnosed with recent-onset schizophrenia.

    • Main Results:

    • Six FMSS items formed a unidimensional and cumulative scale, applicable to the total parent group and separately for mothers and fathers.
    • A secondary two-item scale showed applicability for the overall parent group but not for subgroups.
    • Mokken scale analysis results were comparable to principal component analysis findings.
    • The developed quantitative measure demonstrated potential for detecting smaller differences in expressed emotion compared to dichotomous indices.

    Conclusions:

    • The refined FMSS provides a psychometrically sound and quantitative measure of expressed emotion in parents of adolescents with schizophrenia.
    • This enhanced measurement tool expands statistical possibilities for analyzing expressed emotion.
    • The findings support the use of quantitative expressed emotion measures for more sensitive clinical and research applications.