<p class="m-235883536776885553xmsonormal">Desensitization to violence is the result of exposure to violence. It reduces de emotional, cognitive and physiological responses to violence, even generate a positive response to it.</p><p class="m-235883536776885553xmsonormal"><strong>Method. </strong>A mixed sequential method was employed to finally perform a transactional analytic design for the EFA and CFA which included 1720 participants of 25 different high schools and a juvenile detention center.</p><p class="m-235883536776885553xmsonormal"><strong>Results. </strong> The EFA reached a .7234 cumulative proportion of variance and a Cronbach's alpha of .936. The CFA showed scores above .78 in CR, .52 in AVE, and  less than .461 in MSV; Indicating that the desensitization to violence scale for adolescents has adequate psychometric properties. The scale measure enjoyment in exerting psychological violence, amusement in witnessing physical violence, and amusement in witnessing psychological violence.</p><p class="m-235883536776885553xmsonormal">Key words: desensitization, youth, psychometrics, social psychology, violence.</p>