产后亲密关系问卷的因子结构：产后不同时间段的构型不变性和测量不变性。
Factor structure of the Postpartum Bonding Questionnaire: Configural invariance and measurement invariance across postpartum time periods.
作者信息
Matsunaga Asami, Ohashi Yukiko, Sakanashi Kyoko, Kitamura Toshinori
机构信息
Community Mental Health and Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan; Kitamura Institute of Mental Health Tokyo, Tokyo, Japan; Kitamura KOKORO Clinic Mental Health, Tokyo, Japan.
Kitamura Institute of Mental Health Tokyo, Tokyo, Japan; Josai International University, Togane, Chiba, Japan.
出版信息
J Psychiatr Res. 2021 Mar;135:1-7. doi: 10.1016/j.jpsychires.2020.11.017. Epub 2020 Nov 9.
BACKGROUND
Despite the research and clinical significance of the Postpartum Bonding Questionnaire (PBQ), its psychometric properties have not been studied intensively. The goodness-of-fit of proposed factor models of the PBQ is poor. Configural and measurement invariance have never been reported.
METHODS
As a secondary analysis of the previous paper (Ohashi et al., 2016), we analysed the PBQ data at 5 days and 1 month after childbirth among 247 mothers of a singleton. We created 9 parcels of PBQ items to perform confirmatory factor analysis (CFA). We also examined configural and measurement invariances of the PBQ factor structure between the two observation times.
RESULTS
The CFI of the 3-factor model of the PBQ was .936 and .968 for 5 days and 1 month after childbirth, respectively. Configural, measurement (metric, scalar, and residual), and structural (factor variance and factor covariance) invariances were accepted. The mean of only 'anger and restrictedness' factor was scored higher at 1 month than 5 days after childbirth.
CONCLUSION
The 3-factor model of the PBQ was good in its fit with the data as well as robust in its measurement between the two observation time periods.
背景
尽管产后依恋问卷（PBQ）具有研究和临床意义，但其心理测量特性尚未得到深入研究。PBQ建议的因子模型的拟合优度较差。构型不变性和测量不变性从未被报道过。
方法
作为对前文（Ohashi等人，2016年）的二次分析，我们分析了247名单胎母亲产后5天和1个月时的PBQ数据。我们创建了9个PBQ项目包来进行验证性因子分析（CFA）。我们还检验了两个观察时间点之间PBQ因子结构的构型不变性和测量不变性。
结果
PBQ三因子模型的CFI在产后5天和1个月时分别为0.936和0.968。构型不变性、测量不变性（度量、标量和残差）以及结构不变性（因子方差和因子协方差）均被接受。只有“愤怒和受限”因子的均值在产后1个月时高于产后5天。
结论
PBQ的三因子模型与数据拟合良好，并且在两个观察时间段之间的测量具有稳健性。
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