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An investigation into the impact of screen design on computer-based assessments

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Peer-reviewed

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Authors

Haigh, Matt 

Abstract

This article reports on part of a study that investigated the impact of item format on the difficulty of test items. Two parallel forms of a computer-based test were developed; each test consisted of 15 items based on the GCSE Science curriculum. Five items were identical in both forms of the test to act as a control. The remaining items were modified in the parallel forms to investigate the effect of manipulating ten aspects of item format, including, for example, drag and drop categorisation vs. tick-box categorisation; and static graphic vs. animated graphic. The outcomes indicated that there was little effect on quantitative measures of item difficulty when the item format was changed.

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Keywords

Online assessment, Assessment design, Computer-based assessment

Journal Title

Research Matters

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Publisher

Research Division, Cambridge University Press & Assessment

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