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Invoking Arbitrary Units Is Not a Solution to the Problem of Quantification in the Social Sciences

机译:调用任意单位不是解决社会科学量化问题的方法

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摘要

The article by Stephen Humphry (this issue) is a technical tour de force. At one level, I marvel at the ingenuity and sophisticated logic and argument on display. This is impressive work and thinking whichever way you look at it. However, after twice re-reading the manuscript, the same question arises in my mind: What exactly has any of this to do with the measurement of psychological attributes? Humphry has produced an interesting line of argument and a mathematical derivation that augments the Rasch IRT model so that it can incorporate differential discrimination parameters for sets of questionnaire items composing a "measure" of a latent variable. As part of this derivation, a standard unit of measurement is apparently created for an arbitrary, statistically constructed, latent trait. Within the simulation example he provides, the unit is never even defined; it's presumably invoked somewhere but apparently cannot be specified as unambiguously as one might specify a physical unit. Even if the data are artificial, surely it is not
机译:史蒂芬·汉弗莱(Stephen Humphry)的文章(本期)是一项技术巡回演讲。在一个层面上,我惊叹于展示的机巧,复杂的逻辑和论点。无论您以哪种方式看待,这都是令人印象深刻的工作和思考。但是,在两次重新阅读手稿之后,我想到了一个相同的问题:这与心理属性的测量到底有什么关系?汉弗莱(Humphry)提出了一条有趣的论点,并进行了数学推导,扩大了拉希(Rasch)IRT模型,从而可以将差分判别参数纳入构成潜在变量“度量”的问卷项目集。作为此推导的一部分,显然为任意的,经统计构造的潜在特征创建了一个标准的度量单位。在他提供的仿真示例中,甚至从未定义过单位。它大概是在某个地方调用的,但是显然不能像指定一个物理单元那样明确地指定它。即使数据是人为的,也肯定不是

著录项

  • 来源
    《Measurement》 |2011年第4期|p.28-31|共4页
  • 作者

    Paul Barrett;

  • 作者单位

    Advanced Projects R&D, New Zealand Department of Psychology, University of Auckland;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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