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Background <p>Self-efficacy is a crucial predictor of effective performance in medical emergencies requiring first aid skills. Despite this, there is no standardized instrument for reliably measuring self-efficacy in first aid situations. The aim was to fill this gap by developing a novel first aid self-efficacy scale and validate it through a comprehensive assessment of its psychometric properties.</p> Methods <p>A systematic assessment of the existing first aid self-efficacy scales was conducted. A psychometric analysis process involving 1152 participants was undertaken for the new scale. The analysis utilized factor analysis, non-parametric item response theory, and classical test theory, including validity assessment.</p> Results <p>The developed first aid self-efficacy scale demonstrated excellent psychometric properties. The scale exhibited a robust internal structure, high reliability, and strong construct validity. It showed significant positive correlations with related constructs and effectively distinguished between different levels of first aid knowledge and training history.</p> Conclusion <p>The first aid self-efficacy scale is a novel, reliable, and valid instrument for assessing self-efficacy in first aid contexts. It can be used to measure the impact of first aid training and interventions, thereby promoting more effective layperson responses in emergencies. The scale’s robust psychometric properties make it a valuable tool for both research and practical applications in emergency preparedness and first aid training.</p>

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First aid self-efficacy: a scale adaptation and psychometric properties

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年4月1日

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  • Minna Sihvo,
  • Ville Heilala,
  • Tommi Kärkkäinen

摘要

Background

Self-efficacy is a crucial predictor of effective performance in medical emergencies requiring first aid skills. Despite this, there is no standardized instrument for reliably measuring self-efficacy in first aid situations. The aim was to fill this gap by developing a novel first aid self-efficacy scale and validate it through a comprehensive assessment of its psychometric properties.

Methods

A systematic assessment of the existing first aid self-efficacy scales was conducted. A psychometric analysis process involving 1152 participants was undertaken for the new scale. The analysis utilized factor analysis, non-parametric item response theory, and classical test theory, including validity assessment.

Results

The developed first aid self-efficacy scale demonstrated excellent psychometric properties. The scale exhibited a robust internal structure, high reliability, and strong construct validity. It showed significant positive correlations with related constructs and effectively distinguished between different levels of first aid knowledge and training history.

Conclusion

The first aid self-efficacy scale is a novel, reliable, and valid instrument for assessing self-efficacy in first aid contexts. It can be used to measure the impact of first aid training and interventions, thereby promoting more effective layperson responses in emergencies. The scale’s robust psychometric properties make it a valuable tool for both research and practical applications in emergency preparedness and first aid training.