Reusing Textual Resources in Educational Assessment: Adding Text Readability Metrics to Learning Metadata

Muriel Foulonneau, Eric Ras, Elie Abou Zeid, Talar Atéchian

Abstract


Many digital libraries have identified learners as a core audience. Indeed, many of
their resources can be reused in educational contexts. Nevertheless, the search criteria used for retrieving
texts as a specific multimedia type are limited. They often do not include properties specific to
educational contexts. Assigning LOM metadata to a theatre play or a painting is difficult, since it was
not created for a particular learning context. However, it is possible to assign metadata to textual
resources based on their characteristics and map these characteristics to an IEEE LOM or DCMI Audience
metadata element. Text readability metrics for instance can be mapped to educational audiences. In the
scope of the iCase project, we are developing an assessment item generation system. We have therefore
analyzed metadata models for assessment resources and defined a set of metadata which should be assigned
to the multimedia components of assessment items. A major challenge consists in relating multimedia
resources to the specific audience metadata. In order to include external resources such as texts, we
developed a component available as a Web service to assign metrics related to text readability. In this
paper, we present metadata for assessment items and introduce readability metrics.