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首页> 外文学位 >A psychometric investigation of a self -control scale: The reliability and validity of Grasmick et al.'s scale for a sample of incarcerated male offenders.
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A psychometric investigation of a self -control scale: The reliability and validity of Grasmick et al.'s scale for a sample of incarcerated male offenders.

机译：自我控制量表的心理学计量研究：Grasmick等人的量表对被监禁男性罪犯样本的信度和效度。

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摘要

This dissertation investigates the reliability and internal validity of one of the most commonly used measures of self-control, i.e., Grasmick et al.'s 24 item self-control scale. Using a sample of 651 male offenders residing in the Diagnostic and Evaluation center in Lincoln, Nebraska, this dissertation explores the psychometric properties of Grasmick et al.'s scale by answering the following questions. First, is Grasmick et al.'s scale reliable? Second, does it show observed differences across black and white offender groups? Third, is Grasmick et al.'s scale unidmensional? Fourth, is Grasmick et al.'s scale multidimensional? Fifth, can Grasmick et al.'s scale items discriminate among levels of self-control for a sample of incarcerated offenders? Sixth, do respondents' levels of self-control affect survey responses? Finally, are Grasmick et al.'s scale items invariant across black and white offender groups? These questioned are answered using several analytic methods including Cronbach's reliability coefficients, exploratory and confirmatory factor analyses, and a Rasch rating scale model.;Results from this study lead to several interesting conclusions. First, Grasmick et al.'s scale has high reliability for a sample of incarcerated male offenders. Second, racial differences were observed, but these differences were not what would be expected according to self-control theory. Second, confirmatory factor analysis and a Rasch model confirmed that Grasmick et al.'s scale was not measuring one construct, but was shown to measure six correlated dimensions. Third, a Rasch analysis showed that items were able to discriminate among offenders' levels of self-control. Fourth, a Rasch analysis revealed that level of self-control affects responses to survey items: low self-control offenders have unexpectedly lower scores. Finally, several of Gramsick et al.'s scale items exhibited differential item function or bias across black and white offenders. Directions for future research are discussed.
机译：本论文研究了最常用的自我控制措施之一即Grasmick等人的24项自我控制量表的信度和内部有效性。本文使用内布拉斯加州林肯市诊断与评估中心的651名男性罪犯的样本，通过回答以下问题来探索Grasmick等人量表的心理计量特性。首先，Grasmick等人的规模可靠吗？其次，它是否显示出在黑人和白人罪犯群体之间观察到的差异？第三，格拉斯米克（Grasmick）等人的量表是否不合身？第四，Grasmick等人的量表是多维的吗？第五，Grasmick等人的量表项目可以区分被监禁者的自我控制水平吗？第六，受访者的自我控制水平是否会影响调查答复？最后，Grasmick等人的量表项目在黑人和白人罪犯群体中是否不变？这些疑问可以通过几种分析方法来回答，包括克朗巴赫的可靠性系数，探索性和确认性因素分析以及Rasch评定量表模型。本研究的结果得出了一些有趣的结论。首先，Grasmick等人的量表对被监禁的男性罪犯样本具有很高的可靠性。第二，观察到种族差异，但是根据自我控制理论，这些差异并不是预期的。其次，验证性因素分析和Rasch模型证实了Grasmick等人的量表没有测量一种构建体，但是显示出可以测量6个相关维度。第三，Rasch分析表明，物品能够区分犯罪者的自我控制水平。第四，Rasch分析显示，自我控制的程度会影响对调查项目的回应：自我控制能力低的犯罪者的得分出乎意料地较低。最后，Gramsick等人的一些量表项目在黑人和白人罪犯中表现出不同的项目功能或偏见。讨论了未来研究的方向。

著录项

  • 作者

    Gibson, Christopher L.;

  • 作者单位

    University of Nebraska at Omaha.;

  • 授予单位 University of Nebraska at Omaha.;
  • 学科 Sociology Criminology and Penology.;Psychology Psychometrics.
  • 学位 Ph.D.
  • 年度 2005
  • 页码 273 p.
  • 总页数 273
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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