To find proof as to whether he is "in love" or not, Yukimura pats Himuro on the head from point-blank range. Seeing this, Ibarada, an upperclassman in the Ikeda Lab, talks about the need for a control experiment. In other words, in order to prove that the racing of his heart is because of Himuro specifically and not just because he's facing a woman, Yukimura has to pat Kanade and Ibarada on the head too. Himuro, on the other hand, sets out to prove that food made with love tastes better and cooks, but...
This is called a negative control.
.هذا ما يسمّى بمجموعة المقارنة السلبيّة
Das nennt sich Negativkontrolle.
Eso es un control negativo.
estaríamos hablando de control negativo.
On appelle ça un contrôle négatif.
Questo si chiama "controllo negativo".
Isso é chamado de controle negativo.
Это негативный контроль.