An Introduction to Item Response Theory and Rasch Models for Speech-Language Pathologists
An Introduction to Item Response Theory and Rasch Models for Speech-Language Pathologists
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DOI：
10.1044/1058-0360(2011/10-0079
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发表时间：
2011-08-01
影响因子：
2.6
通讯作者：
Yorkston, Kathryn
中科院分区：
文献类型：
--
作者：
Baylor, Carolyn;Hula, William;Yorkston, Kathryn
目的：为言语病理学家 (SLP) 提供对项目反应理论 (IRT) 和 Rasch 模型的主要概念性介绍。方法：本教程向 SLP 介绍与 IRT 相关的基本概念和术语以及最常见的 IRT 模型。然后，本文继续概述如何使用 IRT 开发仪器以及自适应测试的一些基本原理。结论：IRT 是一组统计方法，越来越多地用于开发言语病理学中的仪器。虽然 IRT 并不新鲜，但迄今为止其在言语病理学中的应用范围相对有限。目前正在出现几种基于 IRT 的新工具。 IRT 在几个理论和实践方面不同于传统的测试开发方法（通常称为经典测试理论 (CTT)）。 IRT 仪器的管理、评分和解释与大多数传统 CTT 仪器使用的方法不同。 SLP 需要了解 IRT 仪器的基本概念，才能在临床和研究工作中使用这些工具。本文利用言语病理学的例子介绍了 IRT 概念。
Purpose: To present a primarily conceptual introduction to item response theory (IRT) and Rasch models for speech-language pathologists (SLPs).Method: This tutorial introduces SLPs to basic concepts and terminology related to IRT as well as the most common IRT models. The article then continues with an overview of how instruments are developed using IRT and some basic principles of adaptive testing.Conclusion: IRT is a set of statistical methods that are increasingly used for developing instruments in speech-language pathology. While IRT is not new, its application in speech-language pathology to date has been relatively limited in scope. Several new IRT-based instruments are currently emerging. IRT differs from traditional methods for test development, typically referred to as classical test theory (CTT), in several theoretical and practical ways. Administration, scoring, and interpretation of IRT instruments are different from methods used for most traditional CTT instruments. SLPs will need to understand the basic concepts of IRT instruments to use these tools in their clinical and research work. This article provides an introduction to IRT concepts drawing on examples from speech-language pathology.