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Home > Research
Web-based assessment of students
Last modified: Fri Aug 3 09:12:51 2007
Although the use of Web browsers for assessment and self-assessment
is no longer new technology,
my `QUASI' (`a Question-Answer System for the Internet') system was, I believe, the first such system to be
developed and put into routine use (at least in the
UK). I also investigated web-based systems for student coursework
submission when such ideas were still novel
(see my computing publications
section for more details).
There are now commercial products for Web-based assessment, but
QUASI continues to outperform them in a number of areas. Specifically,
QUASI incorporates a novel form of `confidence scoring', in which the
student learns to distinguish guesses from real knowledge. It also
allows free-form answers, and can be configured to distinguish complex
input patterns.
QUASI is a general-purpose computer-aided assessment and self-assessment
system. It enables a non-specialist tutor to design sets of questions that will
be presented to a student by the medium of a Web browser. Students answer the
questions, and receive feedback and a score. Exercises can be set by Web
browser forms, or by writing text files in a well-documented format. QUASI
supports multiple choice, true-false and `click the image' questions, as well
as free-form text entry. It incorporate a pattern-matching strategy to
classify free-form answers according to templates supplied by the tutor.
Although it was useful in its day, and QUASI is still in use in
a number of institutions, I consider
it effectively to be obsolete. I am now interested in more sophisticated
methods of computer-aided learning, including the use of conversational
agents for automated tutorials.
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