Mező, Ferenc, János Máth, Kálmán Abari, and Katalin Mező. 2016. “MATHEMATICAL STATISTIC BACKGROUND OF EFFECTIVENES STUDIES WHICH COLLECT DATA FROM AN EXPERIMENTAL AND A CONTROLL GROUP ONLY ONCE”. Special Treatment - Interdisciplinary Journal 2 (2): 73-82. https://doi.org/10.18458/KB.2016.2.73.