This article aimed to estimate reliability and construct validity of the Identity Engagement Chat Scale (ECICH) of Zegers,Larrain,Trapp,Aviles,Grez and St.Aubin in a sample of 123 university students.This instrument is a Likert type scale involving 45 statements,which assesses the compromise of identity in chatting.Alpha of Cronbach coefficient was 0.93 revealing a high internal consistency.Analysis found a structure conformed by 3 factors (Behavior consistency between the real world and the virtual world;Authenticity and deceit;Experimentation and disinhibition).As a whole,these 3 factors explain a 36.77% ofthe total variance score.This value is considered acceptable.