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Lim, Hwanggyu; Choe, Edison M. – Journal of Educational Measurement, 2023
The residual differential item functioning (RDIF) detection framework was developed recently under a linear testing context. To explore the potential application of this framework to computerized adaptive testing (CAT), the present study investigated the utility of the RDIF[subscript R] statistic both as an index for detecting uniform DIF of…
Descriptors: Test Items, Computer Assisted Testing, Item Response Theory, Adaptive Testing
Lewis, Joan D.; Cruzeiro, Patricia A.; Hall, Charmaine A. – Gifted Child Today, 2007
Currently principals are involved with a variety of programs offered in schools, such as IDEA, English Language Learners, Title I remedial services, migrant education, and gifted and talented programs. However, there is a growing recognition that gifted students are being poorly served by most public schools. The purpose of this study was to…
Descriptors: Leadership Responsibility, Rural Schools, Principals, Academically Gifted