İlhan, M. Et Al. 2020. The effect of the item’s type and cognitive level on its difficulty index: The sample of timss 2015. Participatory Educational Research , vol.7, no.2 , 47-59.

İlhan, M., Öztürk, N., & ŞAHİN, M. G., (2020). The effect of the item’s type and cognitive level on its difficulty index: The sample of timss 2015. Participatory Educational Research , vol.7, no.2, 47-59.

İlhan, Mustafa, NAGİHAN BOZTUNÇ ÖZTÜRK, And MELEK GÜLŞAH ŞAHİN. "The effect of the item’s type and cognitive level on its difficulty index: The sample of timss 2015," Participatory Educational Research , vol.7, no.2, 47-59, 2020

İlhan, Mustafa Et Al. "The effect of the item’s type and cognitive level on its difficulty index: The sample of timss 2015." Participatory Educational Research , vol.7, no.2, pp.47-59, 2020

İlhan, M. Öztürk, N. And ŞAHİN, M. G. (2020) . "The effect of the item’s type and cognitive level on its difficulty index: The sample of timss 2015." Participatory Educational Research , vol.7, no.2, pp.47-59.

@article{article, author={Mustafa İlhan Et Al. }, title={The effect of the item’s type and cognitive level on its difficulty index: The sample of timss 2015}, journal={Participatory Educational Research}, year=2020, pages={47-59} }