Club de valientes violencia 0: contextos upstander en educación infantil y primaria para prevenir el acoso de primer y segundo orden 

Carbonell Sevilla, Sara (Date of defense: 2022-07-22)

This thesis aims to respond to the global problem of bullying and school violence (UNESO, 2019) from a preventive perspective and based on scientific evidence of social impact. The main objective of the thesis is to ...