Influence Of Selected Test Biases On Computerized Adaptive Testing On ICT For Senior Secondary School Two Students In Rivers State, Nigeria.
Journal Title: IOSR Journal of Research & Method in Education (IOSRJRME) - Year 2018, Vol 8, Issue 4
Abstract
This study investigated influence of selected test biases on computerized adaptive testing on ICT for senior secondary school two (SS2) students in Rivers State of Nigeria. Three research questions and three hypotheses guided the study. The hypotheses were tested at 0.05 level of significance. This research adopted expost facto research design. A sample of 100 SS2 students was drawn from the population (all the SS2 students in Rivers State) through multistage sampling technique from the three senatorial zones of the state. Six instruments were designed by the researchers and used for data collection. These are; content bias-free CAT; content biased CAT; construct bias-free CAT; construct biased CAT; predictive bias-free CAT; and predictive biased CAT. Each test has 100 items in its item pool. Items of these CATs were validated in terms of face, content and construct by test experts. The items were also calibrated using threeparameter logistic model of item response theory in RStudio. All items selected for the CAT had reliability coefficient falling within 0.78 to 0.94. Data were analyzed using mean, standard deviation and paired samples t-test. The results showed that content bias, construct bias, and predictive bias influence computerized adaptive testing. Based on the findings, the researchers recommended that appropriately constructed representative items should be used to design computerized adaptive tests for assessment.
Authors and Affiliations
Wokoma Tamuno-Olo Abbott, PROF. ANDY I. JOE
Keywords
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- EP ID EP413809
- DOI 10.9790/7388-0804032732.
- Views 37
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