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Author

Burcu Atar

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Open access Sep 2026

Turkish adaptation of the CTONI-2: psychometric properties and student performance profiles

Introduction The Comprehensive Test of Nonverbal Intelligence-2 (CTONI-2) assesses nonverbal intelligence from ages 6–90 with 6 subtests divided into a Pictorial composite and a Geometric composite. There was no previously validated Turkish version. The purpose of this study was to adapt the CTONI-2 for Turkish primary...

Burhanettin Ozdemir, Nesrin Seef, Burcu Atar · 1 citation
Open access Aug 2026

A Comparison of Item Selection Methods and Parameter Estimation Approaches for Online Calibration in Computerized Adaptive Testing

Online calibration enables continuous replenishment of computerized adaptive testing (CAT) item banks by embedding new pretest items within operational test sessions. However, the relative performance of different calibration components and their interactions have not been fully examined in a unified framework. This st...

Levent Ertuna, C. Glas, Burcu Atar · 0 citations

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