EMPIRICAL COMPARISON OF THE MULTIDIMENSIONAL MODELS OF ITEM RESPONSE THEORY IN E-COMMERCE

ABSTRACT The measurement of latent traits within the organizational field such as quality, effectiveness and learning has been conducted in several formats using a wide variety of quantitative methods, including Item Response Theory that consistently increased in organizational studies. The purpose of this article is to compare the hierarchical and non-hierarchical structures of three multidimensional models of ItemResponse Theory, based on the interface quality measurement in e-commerce sites. We compared the multiple unidimensional, compensatory multidimensional and bifactorial models, and also elaborated and applied 75 items in a sample of 441 e-commerce websites. As a result, we conducted a discussion of the latent construct, the quality in e-commerce and its multidimensional configuration to adjust and compare three multidimensional models.

摘要：组织领域内质量、效能与学习水平等潜特质的测评，已通过多种形式、采用丰富的定量研究方法开展，其中项目反应理论（Item Response Theory）在组织研究中的应用持续增多。本研究以电商网站界面质量测评为研究场景，对比三种项目反应理论多维模型的层级与非层级结构。研究分别对比了多重单维模型、补偿性多维模型与双因子模型，并针对441家电商网站组成的样本，编制并施测了75个测评条目。最终，本研究围绕电商质量这一潜在构念及其多维结构展开讨论，以实现对三种多维模型的适配与对比。