University of Iowa.
University of Notre Dame.
J Clin Psychol. 2018 Jun;74(6):953-968. doi: 10.1002/jclp.22560. Epub 2018 Jan 12.
The present study developed normative data for the expanded version of the Inventory of Depression and Anxiety Symptoms (IDAS-II). The IDAS-II is a self-report measure containing 18 factor-analytically derived scales, each assessing a specific symptom of internalizing disorders, including depression, anxiety disorders, OCD, bipolar disorder, and PTSD. These normative data were used to examine group differences in internalizing symptoms across demographic characteristics.
A total of 1,836 Mechanical Turk users (47.6% male; mean age = 35.6) completed the IDAS-II; the sample was weighted to be representative of the U.S. population on gender, age, and race/ethnicity.
Percentiles were derived for each of the IDAS-II scales. Age was the demographic characteristic most consistently associated with lower internalizing symptoms.
The present study provides information on the distribution of specific internalizing symptoms in a large national sample, as well as on how these symptoms are related to demographic characteristics.
本研究为抑郁和焦虑症状量表（IDAS-II）的扩展版本制定了规范数据。IDAS-II 是一种自我报告的测量工具，包含 18 个从因素分析中得出的量表，每个量表评估内化障碍的特定症状，包括抑郁症、焦虑症、强迫症、双相情感障碍和创伤后应激障碍。这些规范数据用于检查人口统计学特征对内化症状的组间差异。
共有 1836 名 Mechanical Turk 用户（47.6%为男性；平均年龄=35.6）完成了 IDAS-II；该样本经过加权，以在性别、年龄和种族/民族方面代表美国人口。
为 IDAS-II 的每个量表都得出了百分位数。年龄是与较低内化症状最一致相关的人口统计学特征。
本研究提供了关于在大型全国样本中特定内化症状分布的信息，以及这些症状与人口统计学特征的关系。
