The Psychometric Properties of the Kessler Psychological Distress Scale (K6) in an Epidemiological Sample of Canadian Youth
The Psychometric Properties of the Kessler Psychological Distress Scale (K6) in an Epidemiological Sample of Canadian Youth
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DOI：
10.1177/0706743718818414
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发表时间：
2019-09-01
影响因子：
4
通讯作者：
Ferro, Mark A.
中科院分区：
文献类型：
--
作者：
Ferro, Mark A.
目的：本研究(1)描述了Kessler心理困扰量表（K6）得分在青少年流行病学样本中的分布，(2)报告了其项目相关性和内部一致性信度，(3)检验了年龄（青年与成人）和性别的测量不变性，(4)检验了其对过去一年精神障碍的预测能力。方法：选取加拿大社区健康调查-心理健康问卷中完成K6的15 ~ 19岁青少年（n = 2010）和20 ~ 64岁成人（n = 2010）。使用世界卫生组织综合国际诊断访谈3.0 （WHO-CIDI）对过去一年的精神疾病进行测量。计算多元相关矩阵和序数信度系数来评估K6的内部一致性，并采用验证性因子分析来检验测量不变性。计算曲线下面积（auc），以确定K6预测WHO-CIDI阳性筛查的程度。结果：K6得分呈j型分布，约50%的青少年有分数
Objective: This study (1) describes the distribution of Kessler Psychological Distress Scale (K6) scores in an epidemiological sample of youth, (2) reports its item correlations and internal consistency reliability, (3) tests for measurement invariance by age (youth vs. adults) and sex, and (4) examines its predictive power for past-year psychiatric disorders. Method: Youth aged 15 to 19 years (n = 2010) and adults aged 20 to 64 years (n = 2010) from the Canadian Community Health Survey-Mental Health who completed the K6 were included. Past-year psychiatric disorders were measured using the World Health Organization Composite International Diagnostic Interview 3.0 (WHO-CIDI). Polychoric correlation matrices and ordinal reliability coefficients were calculated to assess internal consistency of the K6, and confirmatory factor analysis was used to test for measurement invariance. Area under the curves (AUCs) were computed to determine the extent to which the K6 predicted a positive screen on the WHO-CIDI. Results: K6 scores showed a J-shaped distribution, with >50% of youth having scores