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March 25, 2026Journal of the Ergonomics Society of Korea

Analysis of Icon Search Time Based on Three Probability Distribution Models

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Authors

YHYujeong HaSookmyung Women's UniversitySHSeung-Kweon Hong

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Implication

Analysis identifies the best probability distribution for icon search time, suggesting implications for usability studies.

Key Points

  • This study aims to determine the most accurate probability distribution for icon search time while assessing the impact of icon characteristics.
  • Participants completed an icon search task with varying number, color, and shape similarity.
  • Search times were fitted to normal, ex-Gaussian, and modified exponential models.
  • ANOVA analyzed effects of the three icon factors on mean search times derived from each model.
  • Icon search times exhibited positive skewness with a long right tail.
  • Both ex-Gaussian and modified exponential models fit the data well, while up to 36.4% deviated from normality.
  • ANOVA results indicated the normal and modified exponential means produced similar patterns, but the ex-Gaussian mean showed lower significance in longer search times.

Cite This Study

Ha et al. (2025) studied this question.

synapsesocial.com/papers/69c37aa8b34aaaeb1a67c93dhttps://doi.org/10.5143/jesk.2025.44.6.957
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