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Download full textZhang, Yanling – 2002
A study was conducted to investigate how differential item functioning (DIF) is associated with student characteristics such as gender and ethnicity for the total group and to understand the pattern and nature of existing group differences by conducting DIF analyses separately within gender and ethnicity. The research is unique in that it…
Descriptors: Achievement Tests, Elementary Secondary Education, Ethnicity, Item Bias
Zhang, Liru – 2000
A study investigated possible reasons for the low performance in 2000 on the writing portion of the Delaware Student Testing Program (DSTP) by students, especially in grades 3 and 5. The study also investigated ways to improve classroom instruction in writing. A panel of teachers reviewed the anchor papers and the process of testing. Panel members…
Descriptors: Elementary Secondary Education, Student Evaluation, Test Construction, Test Content
