Algoritmo de um teste adaptativo informatizado com base na teoria da resposta ao item para a estimação da usabilidade de sites de e-commerce

作者: Fernando de Jesus Moreira Junior , Rafael Tezza , Dalton Francisco de Andrade , Antonio Cezar Bornia

DOI: 10.1590/S0103-65132012005000095

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摘要: Abstract This paper proposes an algorithm of a computerized adaptive testing based on Item Response Theory, designed to estimate the degree usability e-commerce sites. Five algorithms were tested by simulation. The with best performance was applied real data from 361 results showed that could obtain good estimates for sites application 13 items. Keywords Computerized testing. response theory. Usability. SCHENKMAN, B. N.; JONSSON, F. U. Aesthetics and preferences web pages. Behaviour & Information Technology, v. 19, n. 5, p. 367-377, 2000. http://dx.doi.org/10.1080/014492900750000063SUKAMOLSON, S. Test/Item Banking Adaptive Testing Teachers Lecturers. Technology Universities in Asia TOIT, M. – ITUA, 2002.STRAUB, D. W. Validating instruments MIS research. Quarterly, 13, 2, 147-169, 1989. http://dx.doi.org/10.2307/248922TAVARES, H. R.; ANDRADE, F.; PEREIRA, C. A. Detection determinant genes diagnostic via item Genetics Molecular Biology, 27, 4, 679-685,http://dx.doi.org/10.1590/ 2004. S1415-47572004000400033TEJADA, J. R. Pasado, presente y futuro de los Tests Adaptativos Informatizados: entrevista con Isaac I. Bejar. Psicothema, 685-690, 2001.TEZZA, BORNIA, C.; Measuring using theory: Principles, features opportunities. Interacting Computers, 23, 167-175,http://dx.doi.org/10.1016/j. 2011. intcom.2011.02.004IRT SSI: BILOG-MG, MULTILOG, PARSCALE, TESTFACT. Scientific Software International, 2003.VAN DER LINDEN, J.; GLAS, Testing: Theory Practice. Dordrecht: Kluwer Academic, 2000.WAINER, CATs: Whither whence. Psicologica: revista metodologia psicologia experimental, 21, 1, 121-133, 2000a.WAINER, A Primer. New Jersey: Lawrence Erlbaum Associates, 2000b.

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