| Abstract [eng] |
Today electronic testing systems are getting more and more popular in the world, also in Lithuania. Most of them are dedicated for question database design, administration, present test questions, collect and store respondent answers. Most of such systems have descriptive analysis and graphical visualization features which can be handful analyzing test questions. Created models and application enables to do a deeper analysis of the tests and make justified decisions on improving them. One of the student ability e-testing systems used in Kaunas University of Technology is Edu Campus which does not have statistical items analyses feature. Made-up web-based system enables to move data from Edu Campus to SAS format files and do statistical analysis via internet browser. Classical Test Theory and Item Response Theory are used for statistical test analysis. Classical Test Theory analyzes the reliability and discrimination of the items. Item Response Theory is used for more sophisticated modeling of the test and the model can be used to qualify data. Web application is based on JSP/Servlets technology which has framework supported by SAS and enables delivery of the results to the internet. Data transfer from Edu Campus, storing, data sub setting, statistical analysis and compilation of results is done in a SAS®9.1 system. The feature of the made-up system is that users do not have to know the SAS language and have some specific applications installed in their personal computers. The objective of this work was to build a web-based test analysis system based on classical test and item response theories. An example demonstrating capabilities of the system is made on real KTU, first course mathematics test data. |
