The psychometric properties of the self-reported SDQ - An analysis of Swedish data based on the Rasch model
The psychometric properties of the self-reported SDQ - An analysis of Swedish data based on the Rasch model
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DOI：
10.1016/j.paid.2007.03.022
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发表时间：
2007-10-01
影响因子：
4.3
通讯作者：
Hagquist, Curt
中科院分区：
文献类型：
--
作者：
Hagquist, Curt
力量和困难问卷（SDQ）越来越多地被用作一种调查工具，以获取有关儿童和青少年心理健康问题的信息。根据SDQ的大部分评价，该仪器显示出良好的心理测量特性。本文运用潜在特质理论和Rasch模型分析了自我报告SDQ的五个子量表的性质，并重点研究了项目的操作特征。该分析基于2003年和2004年在瑞典收集的12-18岁青少年的横断面数据。总共使用了6组数据，包括8838名学生。分析发现了所有维度的问题。特别是，行为问题量表似乎有问题。通过去除不合适的项目，在事后分析中取得了一些改进。然而，一些项目的模棱两可性质是令人关切的主要原因，但也有可能改进该文书。因此，建议将每一个包含两个句子的项目分成两个新项目，以便在今后的研究中进行测试。(c) 2007 Elsevier Ltd.版权所有。
The Strength and Difficulties Questionnaire (SDQ) is increasingly used as a survey instrument for tapping information about mental health problems among children and adolescents. According to most of the evaluations of the SDQ, the instrument shows sound psychometric properties. The purpose of this paper is to analyse the properties of five subscales of the self-reported SDQ by using latent trait theory and the Rasch model, with a focus on the operating characteristics of the items. The analysis is based on cross-sectional data collected in Sweden in 2003 and 2004 among adolescents aged 12-18. In all, six sets of data including 8838 students are used. The analysis detected problems in all dimensions. In particular, the conduct problems scale seemed problematic. By removing misfitting items some improvements were achieved in the post-hoc analysis. However, the ambiguous nature of some items is a major cause for concern but also a potential for improvements of the instrument. It is therefore recommended that each of those items that include two sentences is split into two new items, in order to be tested in forthcoming studies. (c) 2007 Elsevier Ltd. All rights reserved.