The assessment of learning in large online courses requires tools that are valid, reliable, easy to administer, and can be automatically scored. We have evaluated an online assessment and learning tool called Knowledge Assembly, or Knowla. Knowla measures a student's knowledge in a particular subject by having the student assemble a set of…

This paper describes and reports on the performance of six related artificial neural networks that have been developed for the purpose of readability analysis. Two networks employ counts of linguistic variables that simulate a traditional regression-based approach to readability. The remaining networks determine readability from "visual…

The first purpose of this study was to examine the relationships between changes made during the development of written instruction and the effectiveness of the materials when presented to students. For this purpose, the Written Instruction Stylistic Evaluation was used to assess the comprehensibility of passages before administration of the…