Purpose

This study aimed to adapt and assess the validity and reliability of the Spanish version of the Exercise in Eating Disorders Questionnaire (EED-Q) in order to diversify and offer a more comprehensive, effective, and standardized assessment of maladaptive exercise (ME) in ED.

Methods

The EED-Q is a self-reported questionnaire that assesses eating disorders (ED) patients' attitudes towards exercise. Based on the four-factor model of the original version, the EED-Q was adapted through forward and back-translation and inconsistencies were addressed through a committee of experts. Then, the EED-Q Spanish version (S-EED-Q) was administered to 172 patients with eating disorders (age = 15.28 ± 1.64 years). An exploratory factor analysis was computed to assess the construct validity. Inter-item correlations, item-factor correlations, McDonald's Omega, and Cronbach's Alpha were estimated to test the internal consistency (reliability). In addition, convergent validity was tested by relating EED-Q and the Eating Disorders Inventory 2 (EDI-2) scores, discriminant validity was assessed comparing EED-Q item-factor correlations, and divergent validity was conducted by analyzing EED-Q factor correlations.

Results

The S-EED-Q revealed significant generalized correlations among the scale items and showed good reliability scores (McDonald's Omega and Cronbach's alpha >0.7) except for Factor 2 (McDonald's Omega = 0.63 and Cronbach's alpha = 0.58). After eliminating items 8 and 15 due to their low factor loadings, the EFA revealed a robust empirical factor structure, adequate to the theoretical model, with good levels of total explained variance (65%). Convergent, discriminant and divergent validity showed good performance: results showed expected correlations between EED-Q and EDI-2, all items achieved higher item-factor correlations in their theoretical factor than in the others, and all factor-factor correlations were as expected.

Conclusion

This study is the first to adapt and validate the S-EED-Q. The psychometric properties of the S-EED-Q compared to the original version were supported with some limitations. Although the psychometric properties of the scale are adequate and the construct, convergent, discriminant and divergent validity are endorsed, some of the original items are questionable. Likewise, the items of the positive and healthy exercise factor require an in-depth revision.

中文翻译：

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西班牙版运动和饮食失调问卷的跨文化适应和验证

目的

本研究旨在调整和评估西班牙版饮食失调运动问卷 (EED-Q) 的有效性和可靠性，以便多样化并提供对 ED 适应不良运动 (ME) 的更全面、有效和标准化的评估。

方法

EED-Q 是一份自我报告的问卷，用于评估饮食失调 (ED) 患者对运动的态度。基于原始版本的四因素模型，EED-Q 通过正向和反向翻译进行了调整，并通过专家委员会解决了不一致的问题。然后，对 172 名饮食失调患者（年龄 = 15.28 ± 1.64 岁）进行了 EED-Q 西班牙语版本 (S-EED-Q)。计算探索性因素分析以评估构建有效性。估计项目间相关性、项目因子相关性、McDonald's Omega 和 Cronbach's Alpha 来检验内部一致性（可靠性）。此外，通过关联 EED-Q 和饮食失调量表 2 (EDI-2) 分数来测试收敛效度，通过比较 EED-Q 项目-因素相关性来评估判别效度，并通过分析 EED-Q 因素相关性来进行发散效度。

结果

S-EED-Q 显示量表项目之间存在显着的广义相关性，并显示出良好的可靠性得分（麦当劳 Omega 和 Cronbach's alpha >0.7），但因子 2（麦当劳 Omega = 0.63 和 Cronbach's alpha = 0.58）除外。由于第 8 项和第 15 项因子负荷较低而被剔除后，EFA 揭示了一个稳健的经验因子结构，足以满足理论模型的要求，具有良好的总解释方差水平 (65%)。收敛效度、判别效度和发散效度表现出良好的性能：结果显示 EED-Q 和 EDI-2 之间存在预期的相关性，所有项目在其理论因素中都实现了比其他项目更高的项目-因子相关性，并且所有因子-因子相关性均符合预期。

结论

这项研究是第一个适应和验证 S-EED-Q 的研究。与原始版本相比，S-EED-Q 的心理测量特性受到一些限制的支持。尽管该量表的心理测量特性是充分的，并且其结构效度、趋同效度、判别效度和发散效度都得到了认可，但一些原始项目还是值得商榷的。同样，积极健康的运动因素的项目也需要深入修改。