School of Applied Psychology, Griffith University, Brisbane, Queensland, Australia.
School of Applied Psychology, Griffith University, Brisbane, Queensland, Australia.
Body Image. 2023 Sep;46:395-405. doi: 10.1016/j.bodyim.2023.07.007. Epub 2023 Aug 4.
Thin ideal internalization is widely implicated in women's body image and eating disturbances. A recently proposed multidimensional operationalization of internalization suggests the brevity and construct validity of existing questionnaires may limit the assessment of thin ideal internalization. Therefore, this research aimed to develop a new questionnaire (i.e., Thin Ideal Internalization Assessment; THIINA) to comprehensively assess thin ideal internalization. In Study 1, 301 female participants were administered the THIINA. Exploratory factor analyses revealed the 17-item THIINA had a stable 3-factor structure reflecting thin idealization, thin overvaluation, and thin behavioral drive. In Study 2, 337 female participants were administered the THIINA and validation measures. Confirmatory factor analysis confirmed stability of the 3-factor structure and findings supported convergent, discriminant, and incremental validity of the THIINA. Support for temporal stability was found within a sub-sample of participants (n = 132). The THIINA demonstrated strong psychometric properties, a stable three-factor structure representing theoretically-driven domains, and support for the creation of a composite score representing overall thin ideal internalization. These findings suggest the multidimensional operationalization and measurement of thin ideal internalization could improve theoretical and clinical understanding of the impact of thin ideal internalization on women's body image and eating.
瘦理想内化广泛涉及女性的身体意象和饮食障碍。最近提出的内化的多维操作性定义表明，现有问卷的简洁性和结构有效性可能限制了瘦理想内化的评估。因此，本研究旨在开发一种新的问卷（即瘦理想内化评估；THIINA）来全面评估瘦理想内化。在研究 1 中，301 名女性参与者接受了 THIINA 的测试。探索性因素分析显示，17 项 THIINA 具有稳定的 3 因素结构，反映了瘦理想主义、瘦高估和瘦行为驱动力。在研究 2 中，337 名女性参与者接受了 THIINA 和验证措施的测试。验证性因素分析证实了 3 因素结构的稳定性，研究结果支持 THIINA 的收敛、区分和增量有效性。在参与者的一个子样本中发现了对时间稳定性的支持（n=132）。THIINA 具有很强的心理测量特性，一个稳定的三因素结构代表了理论驱动的领域，并支持创建一个代表整体瘦理想内化的综合得分。这些发现表明，瘦理想内化的多维操作性定义和测量可以提高对瘦理想内化对女性身体意象和饮食影响的理论和临床理解。
