@misc{Skórska_Paulina_Incorrect,
 author={Skórska, Paulina and Świst, Karolina and Szaleniec, Henryk},
 howpublished={online},
 publisher={Educational Research Institute},
 language={pol},
 type={article},
 title={Incorrect classification of item response formats – consequences for test validity},
 keywords={item format, construct validity, content validity, constructed-response item, selected-response item},
}