Research Division, Hebrew Home at Riverdale, Riverdale, New York, NY.
Measurement and Data Management Core, Mount Sinai Pepper Older Americans Independence Center, Mount Sinai Medical Center, and Analytic Core, Columbia University Alzheimer's Disease Resource Center for Minority Aging Research, New York, NY.
Palliat Support Care. 2020 Oct;18(5):544-556. doi: 10.1017/S1478951520000152.
Although the psychometric properties of the Family Satisfaction with End-of-Life Care measure have been examined in diverse settings internationally; little evidence exists regarding measurement equivalence in Hispanic caregivers. The aim was to examine the psychometric properties of a short-form of the FAMCARE in Hispanics using latent variable models and place information on differential item functioning (DIF) in an existing family satisfaction item bank.
The graded form of the item response theory model was used for the analyses of DIF; sensitivity analyses were performed using a latent variable logistic regression approach. Exploratory and confirmatory factor analyses to examine dimensionality were performed within each subgroup studied. The sample included 1,834 respondents: 317 Hispanic and 1,517 non-Hispanic White caregivers of patients with Alzheimer's disease and cancer, respectively.
There was strong support for essential unidimensionality for both Hispanic and non-Hispanic White subgroups. Modest DIF of low magnitude and impact was observed; flagged items related to information sharing. Only 1 item was flagged with significant DIF by both a primary and sensitivity method after correction for multiple comparisons: "The way the family is included in treatment and care decisions." This item was more discriminating for the non-Hispanic, White responders than for the Hispanic subsample, and was also a more severe indicator at some levels of the trait; the Hispanic respondents located at higher satisfaction levels were more likely than White non-Hispanic respondents to report satisfaction.
The magnitude of DIF was below the salience threshold for all items. Evidence supported the measurement equivalence and use for cross-cultural comparisons of the short-form FAMCARE among Hispanic caregivers, including those interviewed in Spanish.
尽管家庭对临终关怀满意度量表的心理计量学特性已在国际上的不同环境中进行了检验，但在西班牙裔照顾者中，关于测量等效性的证据很少。目的是使用潜在变量模型检验 FAMCARE 短式在西班牙裔中的心理计量学特性，并在现有的家庭满意度项目库中放置关于差异项目功能（DIF）的信息。
使用项目反应理论模型的分级形式进行 DIF 的分析；使用潜在变量逻辑回归方法进行敏感性分析。在每个研究的亚组内进行探索性和验证性因子分析以检查维度。样本包括 1834 名受访者：317 名西班牙裔和 1517 名非西班牙裔白种人，分别为阿尔茨海默病和癌症患者的照顾者。
在西班牙裔和非西班牙裔白人群体中，都强烈支持基本的单维性。观察到适度的小幅度和小影响的 DIF；标记的项目与信息共享有关。仅在经过多次比较校正后，有 1 个项目被主要和敏感性方法标记为具有显著 DIF：“家庭在治疗和护理决策中的参与方式”。与非西班牙裔白人群体相比，该项目对西班牙裔的应答者更具区分性，并且在某些特质水平上也是更严重的指标；位于较高满意度水平的西班牙裔应答者比非西班牙裔白种人应答者更有可能报告满意度。
所有项目的 DIF 幅度均低于显著阈值。有证据支持在西班牙裔照顾者中使用 FAMCARE 短式进行跨文化比较的测量等效性，包括用西班牙语接受访谈的照顾者。
