Author = Farzad, Valiollah
Number of Articles: 2
The Analysis of Dimensionality, Testlet Effect and Differential Item Functioning and Impact in Testlet-Based Tests

Volume 8, Issue 24, February 2019, Pages 27-55

Mohammad Ahmadi Deh Qutbuddini; Ebrahim Khodai; Valiollah Farzad; Ali Moghadam Zadeh; Masoud Kabiri

Perception of Usefulness of Statistics Tasks; A Qualitative Study of a Mismatch

Volume 8, Issue 24, February 2019, Pages 85-144

Elaheh Hejazi; Valiollah Farzad; Nahid Sadeghi; Maysam Shirzadifard

Educational Measurement and Evaluation Studies

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