Measurement Invariance of Psychotic-Like Symptoms as Measured With the Prodromal Questionnaire, Brief Version (PQ-B) in Adolescent and Adult Population Samples.
Measurement Invariance of Psychotic-Like Symptoms as Measured With the Prodromal Questionnaire, Brief Version (PQ-B) in Adolescent and Adult Population Samples.
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DOI：
10.3389/fpsyt.2020.593355
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发表时间：
2020
影响因子：
4.7
通讯作者：
Therman S
中科院分区：
文献类型：
--
作者：
Lång U;Mittal VA;Schiffman J;Therman S
有效的测量组的差异，自我报告的精神病样的经验（PLEs）需要知道任何组特定的测量工具的属性。我们在两个不同的美国非临床本科生样本（N = 1，099）中调查了21项前驱症状简短（PQ-B）问卷在性别、少数民族/多数民族状态和抑郁症状存在情况下的测量不变性。对于每一个项目，认可的经验和相关的痛苦进行了综合分析。PQ-B的一维模型很好地拟合了数据。在性别之间，PQ-B表现出的几何和度量，但不是完全标量不变性;有统计学意义上的差异，在8个阈值的6个项目，大多数是较高的认可阈值的自我认同的女性。部分标量不变性也被发现的种族地位，与五个阈值的三个项目较高的少数民族参与者。对于抑郁症患者，定义为前五分之一的贝克抑郁量表-II，部分标量不变性需要下降一个项目，之后有统计学显着差异，只有在两个反应阈值。总体而言，广泛的PLE问卷项目被认为是强大的性别和种族的影响，加强了信心，发现组的差异在PLE。尽管无法确定任何组比较的完全标量不变性，但发现的几个组间标量差异很小，对组PLE估计值的影响极小。然而，由于PLEs很容易在概念上与抑郁症状纠缠在一起，如果可分离的结构是调查的目标，则应考虑排除类似的项目。
Valid measurement of group differences in self-reported psychotic-like experiences (PLEs) requires knowing any group-specific measurement properties of the instruments. We investigated the measurement invariance of the 21-item Prodromal Questionnaire–Brief (PQ-B) questionnaire across gender, ethnic minority/majority status, and presence of depressive symptoms in two different US non-clinical undergraduate samples (N = 1,099). For each item, endorsement of the experience and the associated distress were combined for analysis. A unidimensional model of the PQ-B fit the data well. Across genders, the PQ-B showed configural and metric, but not full scalar invariance; there were statistically significant differences in eight thresholds of six items, most being higher endorsement thresholds for self-identified females. Partial scalar invariance was also found for ethnic status, with five thresholds of three items being higher for the minority participants. For depressive symptomatology, defined as the top quintile by the Beck Depression Inventory–II, partial scalar invariance required dropping one item, after which there were statistically significant differences only in two response thresholds. Overall, a wide range of PLE questionnaire items were found to be robust to gender and ethnicity effects, strengthening confidence in found group differences in PLEs. Although full scalar invariance could not be ascertained for any of the group comparisons, the few found scalar differences across groups were small, with minimal impact on group PLE estimates. However, since PLEs are easily conceptually entangled with depression symptoms, similar items should be considered for exclusion if separable constructs are the target of investigation.
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DOI：
10.1080/10705519909540118
发表时间：
1999-01-01
影响因子：
6
作者：
Hu, Li-tze;Bentler, Peter M.
通讯作者：
Bentler, Peter M.
影响因子：
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作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
4.5
作者：
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通讯作者：
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影响因子：
3.8
作者：
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通讯作者：
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