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Download full textBanks, Kathleen – Practical Assessment, Research & Evaluation, 2015
This article introduces practitioners and researchers to the topic of missing data in the context of differential item functioning (DIF), reviews the current literature on the issue, discusses implications of the review, and offers suggestions for future research. A total of nine studies were reviewed. All of these studies determined what effect…
Descriptors: Test Bias, Data, Literature Reviews, Evaluation Research
Peer reviewedHubbard, J. I.; Seddon, G. M. – Research in Science and Technological Education, 1989
Investigates differences in marking standard and reliability when experienced teachers carried out assessments of the performance on practical exercises. The results showed that there was no difference between the assessments from the groups containing 5 and 20 students. (Author/YP)
Descriptors: Evaluation Research, Foreign Countries, Group Testing, Science Teachers
