Division of Rehabilitation Science, Department of Rehabilitation Medicine, Medical School, University of Minnesota, Minneapolis, MN, USA.
Division of Physical Therapy, Division of Rehabilitation Science, Department of Rehabilitation Medicine, Medical School, University of Minnesota, 420 Delaware St SE (MMC 388), Rm 311, Minneapolis, MN, 55455, USA.
BMC Psychol. 2023 Feb 17;11(1):48. doi: 10.1186/s40359-023-01058-w.
With the ongoing global COVID-19 pandemic and the recent political divide in the United States (US), there is an urgent need to address the soaring mental well-being problems and promote positive well-being. The Warwick-Edinburgh Mental Well-Being Scale (WEMWBS) measures the positive aspects of mental health. Previous studies confirmed its construct validity, reliability, and unidimensionality with confirmatory factor analysis. Six studies have performed a Rasch analysis on the WEMWBS, and only one evaluated young adults in the US. The goal of our study is to use Rasch analysis to validate the WEMBS in a wider age group of community-dwelling adults in the US.
We used the Rasch unidimensional measurement model 2030 software to evaluate item and person fit, targeting, person separation reliability (PSR), and differential item functioning (DIF) for sample sizes of at least 200 persons in each subgroup.
After deleting two items, the WEMBS analyzed in our 553 community-dwelling adults (average age 51.22 ± 17.18 years; 358 women) showed an excellent PSR = 0.91 as well as person and item fit, but the items are too easy for this population (person mean location = 2.17 ± 2.00). There was no DIF for sex, mental health, or practicing breathing exercises.
The WEMWBS had good item and person fit but the targeting is off when used in community-dwelling adults in the US. Adding more difficult items might improve the targeting and capture a broader range of positive mental well-being.
随着全球 COVID-19 大流行的持续以及美国最近的政治分歧，迫切需要解决不断飙升的心理健康问题，促进积极的幸福感。沃里克-爱丁堡心理健康量表（WEMWBS）衡量心理健康的积极方面。先前的研究通过验证性因素分析证实了其结构效度、信度和单维性。有六项研究对 WEMWBS 进行了 Rasch 分析，只有一项研究评估了美国的年轻人。我们的研究目的是使用 Rasch 分析在美国更广泛的社区居住成年人年龄组中验证 WEMBS。
我们使用 Rasch 单维测量模型 2030 软件评估项目和个体拟合、目标、个体分离可靠性（PSR）和差异项目功能（DIF），每个亚组的样本量至少为 200 人。
在删除两项之后，对我们的 553 名社区居住成年人（平均年龄 51.22 ± 17.18 岁；358 名女性）进行的 WEMBS 分析显示出极好的 PSR=0.91 以及个体和项目拟合，但这些项目对该人群来说太简单了（个体平均值位置=2.17 ± 2.00）。性别、心理健康或练习呼吸练习没有差异。
WEMWBS 在使用美国社区居住成年人时具有良好的项目和个体拟合，但目标定位不准确。添加更困难的项目可能会改善目标定位并捕捉更广泛的积极心理健康范围。
