“…Clinicians have found that psychological dependence is the most important factor in relapse (Zeng & Chen, 2020). In previous studies have explored the effects of variables such as family functioning (Zeng & Tan, 2021), self-concept (Chung & Maisto, 2016), negative motions (Cavicchioli et al, 2019;Zeng et al, 2018), social support (Zeng & Chen, 2020), personality traits, and self-efficacy (Chung & Maisto, 2016;Zhang & Zeng, 2021) on relapse in drug abusers, but little is still known about the psycho-social processes that lead to the cessation of addictive behaviors (Fiorentine & Hillhouse, 2003;Zeng & Chen, 2020). So far, there has been no detailed study on the in-group stereotype of drug abusers from the perspective of them, and it has not been confirmed whether the in-group stereotype exists in them.…”