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Affinity Learning is a system that allows the user to build a lesson on a subject matter by breaking it down into concepts, misconceptions, assessments, and remediation steps. Examples and questions can also used in these components. Affinity Learning has been found to be effective and can offer critical insights to student learning strategies. Authoring Affinity Learning lesson plans or hierarchies, however, is non-trivial. We have developed two authoring tools: the first tool provides an overall view of the hierarchy with a "graphical display" of the nodes and links; but the second tool does not. This article reports on a study conducted to test whether the graphical authoring tool can help produce better-quality hierarchies and also help the users learn about the subject matter better than the non-graphical authoring tool. Results show that while the graphical authoring tool can result in better-quality hierarchies, it does not result in better learning. (Contains 10 figures and 4 tables. Appended are: (1) TEAC 451P/851P Technology Project Description; (2) Handout on the Affinity Learning Project; (3) User Feedback; and (4) Test Used in the Study.)

A learning object is a small, stand-alone, mediated content resource that can be reused in multiple instructional contexts. In this article, we describe our approach to design, develop, and validate Shareable Content Object Reference Model (SCORM) compliant learning objects for undergraduate computer science education. We discuss the advantages of a learning object approach, including positive student response and achievement, extension to other settings and populations, and benefits to the instructor and developers. Results confirm our belief that the use of modular, Web-based learning objects can be used successfully for independent learning and are a viable option for distance delivery of course components. (Contains 2 figures and 2 tables.)