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Measuring Global Character Dimensions: An Ant Colony Optimization Approach toward Three Core Strength Scales.

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Researchers developed short, valid scales to measure three core character strengths: positivity, dependability, and mastery. These economical measures will support large-scale research on personality and values.

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Area of Science:

  • Psychology
  • Personality Science
  • Character Strengths Research

Background:

  • The Values in Action (VIA) framework identifies 24 character strengths.
  • Factor analysis revealed three core metatraits: positivity, dependability, and mastery.
  • Existing measures are lengthy, limiting large-scale survey research.

Purpose of the Study:

  • To develop brief, psychometrically sound scales for measuring the three VIA core strengths.
  • To facilitate economical, large-scale research on character strengths.

Main Methods:

  • Selected 18 items from the IPIP-VIA-R inventory using Ant Colony Optimization.
  • Validated scales across six samples (N=2,754) from Germany and the UK.
  • Assessed psychometric properties including reliability, model fit, and scalar invariance.

Main Results:

  • Developed balanced-keyed scales for positivity, dependability, and mastery with good psychometric properties.
  • Scales demonstrated good model fit, reliability, and scalar measurement invariance across countries.
  • Established scale validity by examining nomological networks with related constructs.

Conclusions:

  • The new scales are valid, economical, and suitable for large-scale research.
  • These measures can advance integrative research on personality, values, and well-being.
  • Scales are publicly available in English and German to encourage broader use.