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Download full textMagno, Carlo – Online Submission, 2009
The present report demonstrates the difference between classical test theory (CTT) and item response theory (IRT) approach using an actual test data for chemistry junior high school students. The CTT and IRT were compared across two samples and two forms of test on their item difficulty, internal consistency, and measurement errors. The specific…
Descriptors: Private Schools, Measurement, Error of Measurement, Foreign Countries
