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Download full textHeller, Joan I.; Curtis, Deborah A.; Jaffe, Rebecca; Verboncoeur, Carol J. – Online Submission, 2005
This study investigated the relationship between instructional use of handheld graphing calculators and student achievement in Algebra 1. Three end-of-course test forms were administered (without calculators) using matrix sampling to 458 high-school students in two suburban school districts in Oregon and Kansas. Test questions on two forms were…
Descriptors: Test Items, Standardized Tests, Suburban Schools, Item Sampling
Fan, Xitao; And Others – 1994
The hypothesis that faulty classical psychometric and sampling procedures in test construction could generate systematic bias against ethnic groups with smaller representation in the test construction sample was studied empirically. Two test construction models were developed: one with differential representation of ethnic groups (White, African…
Descriptors: Ethnic Groups, Genetics, High School Students, High Schools
