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Background <p>Family resources are crucial for older people with dementia, and the Family Inventory of Resources for Management (FIRM) is an important tool for assessing family resources. However, the 52 items of the FIRM can be overwhelming for respondents, limiting its practicality.</p> Objectives <p>To develop a short-form Family Inventory of Resources for Management (SF-FIRM) and evaluate its psychometric properties among families of older people with dementia.</p> Methods <p>We recruited 631 families of patients with dementia from six tertiary hospitals in Beijing and Xuzhou, Jiangsu Province, China, using convenience sampling. The families were divided into Sample 1 and Sample 2. Item analysis was conducted to develop the SF-FIRM by examining the item-sub-scale correlation coefficients, Cronbach’s alpha after item deletion, critical ratios, and variable coefficients in Sample 1. The content validity, convergent validity, structural validity, and internal consistency reliability were assessed to evaluate the psychometric properties of the SF-FIRM in Sample 1 and Sample 2.</p> Results <p>The SF-FIRM consists of seven sub-scales (Positive Evaluation, Sense of Coherence, Vitality, Balance, Mastery, Financial Well-Being, and Extended Family Social Support) and 21 items. The content validity assessment results show that both the item and scale content validity indices were 1.00. Convergent validity was supported by the correlation with family adaptation (Sample 1: <i>r</i> = 0.60, <i>P</i> &lt; 0.01; Sample 2: <i>r</i> = 0.64, <i>P</i> &lt; 0.01). Evidence of construct validity was established based on the following indices for Samples 1 and 2: chi-square fit index = 1.28 and 1.35, comparative fit index = 0.98 and 0.99, Tucker–Lewis index = 0.98 and 0.99, and root mean square error of approximation = 0.03 and 0.04. The Cronbach’s alpha coefficients indicated good internal consistency reliability, with alpha values of 0.87 and omega values of 0.90 in Sample 1, and alpha values of 0.92 and omega values of 0.95 in Sample 2.</p> Conclusion <p>The SF-FIRM is a seven-sub-scale 21-item instrument for assessing the family resources of older people with dementia that has satisfactory psychometric properties. It identifies seven key aspects of family resources in families of older people with dementia, and will facilitate the measurement of family resources in older people with dementia, playing a crucial role in enhancing the health and well-being of both patients and their caregivers.</p>

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The development and validation of the short-form Family Inventory of Resources for Management among families of older people with dementia: instrument development and cross-sectional study

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  • 发表日期：

    2025年10月31日

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  • Yuxin Li,
  • Chang Zan,
  • Sanmei Chen,
  • Shengnan Tang,
  • Qiongqiong Zhang,
  • Yijia Pan,
  • Yu Sheng,
  • Qingyan Wang

摘要

Background

Family resources are crucial for older people with dementia, and the Family Inventory of Resources for Management (FIRM) is an important tool for assessing family resources. However, the 52 items of the FIRM can be overwhelming for respondents, limiting its practicality.

Objectives

To develop a short-form Family Inventory of Resources for Management (SF-FIRM) and evaluate its psychometric properties among families of older people with dementia.

Methods

We recruited 631 families of patients with dementia from six tertiary hospitals in Beijing and Xuzhou, Jiangsu Province, China, using convenience sampling. The families were divided into Sample 1 and Sample 2. Item analysis was conducted to develop the SF-FIRM by examining the item-sub-scale correlation coefficients, Cronbach’s alpha after item deletion, critical ratios, and variable coefficients in Sample 1. The content validity, convergent validity, structural validity, and internal consistency reliability were assessed to evaluate the psychometric properties of the SF-FIRM in Sample 1 and Sample 2.

Results

The SF-FIRM consists of seven sub-scales (Positive Evaluation, Sense of Coherence, Vitality, Balance, Mastery, Financial Well-Being, and Extended Family Social Support) and 21 items. The content validity assessment results show that both the item and scale content validity indices were 1.00. Convergent validity was supported by the correlation with family adaptation (Sample 1: r = 0.60, P < 0.01; Sample 2: r = 0.64, P < 0.01). Evidence of construct validity was established based on the following indices for Samples 1 and 2: chi-square fit index = 1.28 and 1.35, comparative fit index = 0.98 and 0.99, Tucker–Lewis index = 0.98 and 0.99, and root mean square error of approximation = 0.03 and 0.04. The Cronbach’s alpha coefficients indicated good internal consistency reliability, with alpha values of 0.87 and omega values of 0.90 in Sample 1, and alpha values of 0.92 and omega values of 0.95 in Sample 2.

Conclusion

The SF-FIRM is a seven-sub-scale 21-item instrument for assessing the family resources of older people with dementia that has satisfactory psychometric properties. It identifies seven key aspects of family resources in families of older people with dementia, and will facilitate the measurement of family resources in older people with dementia, playing a crucial role in enhancing the health and well-being of both patients and their caregivers.