The psychologist Rogelio Díaz-Guerrero studied beliefs he called historic-sociocultural premises. They include “Un hijo debe siempre obedecer a sus padres” (A son must always obey his parents) and “Nunca se debe dudar de la palabra de una madre” (One must never doubt a mother’s word).
In 1952, he gave a questionnaire to 473 students. According to an article in Cuadernos Fronterizos, a journal of the Autonomous University of Ciudad Juárez, “entre el 83 y el 92% respondió afirmativamente a tres de esas preguntas” (between 83 and 92 percent answered yes to three of those questions). The article does not say which three questions these were.