This article presents the results of evaluating a dataset collected with the Community of inquiry (CoI) survey (Arbaugh, The International Review of Research in Open and Distributed Learning 9:1–21, 2008) using Rasch psychometric techniques to evaluate instrument functioning. Data were collected over a two-year period yielding a sample of 704 survey responses from students who were enrolled in a blended online graduate program. The purpose of this article is to present a Rasch analysis of the CoI survey to provide insight into the functioning of the instrument beyond other statistical analyses of the CoI that have been conducted to date. The results of the analysis provide new insights into the functioning of this measurement instrument and demonstrate the usefulness of Rasch techniques. The rationale for using Rasch techniques as well as the implications of this technique when using the CoI survey when conducting research or evaluations of practices in blended online courses are discussed.

本文介绍了使用Rasch心理测量技术评估仪器功能时，对通过调查社区（CoI）调查收集的数据集（Arbaugh，《开放式和分布式学习研究的国际评论》，9：1-21，2008年）进行评估的结果。两年期间收集了数据，从参加混合在线研究生课程的学生那里获得了704个调查问卷的样本。本文的目的是介绍CoI调查的Rasch分析，以提供对仪器功能的深入了解，而不仅仅是迄今为止进行的CoI的其他统计分析。分析结果为该测量仪器的功能提供了新见解，并证明了Rasch技术的有用性。