Negative self‐perceptions and severity of NSSI: Testing the benefits and barriers model

Abstract

Nonsuicidal self‐injury (NSSI) is theorized to be caused by negative associations with the self, including low self‐esteem, but the mechanisms explaining why low self‐esteem is related to more severe NSSI are unclear. The current study aimed to address this limitation by evaluating a mediation model, proposing that low self‐esteem would relate to more severe NSSI through increasing self‐punishment motivations. Data came from 468 undergraduate students with a history of NSSI who completed an online survey measuring NSSI characteristics and functions, self‐esteem, and self‐punishment motivations for NSSI. Mediation was tested using a structural equation model using bootstrapped 95% percentile‐corrected confidence intervals in which NSSI severity was modeled as a latent variable composed of NSSI frequency, recency, and versatility of methods. The total model was significant and the indirect effect of self‐esteem on NSSI severity through self‐punishment motives was significant. Self‐esteem also retained significant direct effects on NSSI severity, indicating partial mediation. These results provide support for the benefits and barriers model of NSSI, suggesting that negative self‐views increase risk for more severe NSSI through self‐punishment motivations. Clinical interventions that emphasize self‐compassion and focus on modifying self‐punishment motivations may help reduce NSSI behavior.