Robinson KDayer KFMirichlis SHasking PAWilson MS2024-06-192024-06-192023-10Robinson K, Dayer KF, Mirichlis S, Hasking PA, Wilson MS. (2023). Who are we missing? Self-selection bias in nonsuicidal self-injury research.. Suicide Life Threat Behav. 53. 5. (pp. 843-852).0363-0234https://mro.massey.ac.nz/handle/10179/69908BACKGROUND: Despite the threat of self-selection bias to the generalizability of research findings, remarkably little is known about who chooses to take part in non-suicidal self-injury (NSSI) research specifically. We aimed to establish the extent of willingness to take part in NSSI research within a commonly sampled population before assessing whether individual differences in demographic characteristics, NSSI lived experience, and participation experiences were associated with willingness to take part in future NSSI research. METHODS: New Zealand university students (n = 3098) completed self-report measures of their NSSI, psychological distress, emotional dysregulation, experience of their participation in the current study, and willingness to participate in future NSSI research. RESULTS: Most participants (78.2%) indicated that they were willing to take part in future NSSI research. Men, older participants, people with NSSI lived experience, and those with more frequent past-year NSSI were more likely to be willing to take part in future NSSI research. Participants who reported a more positive subjective experience of the current study also indicated greater willingness. CONCLUSIONS: Findings demonstrate systematic differences in who is willing to take part in NSSI research. Future research should implement methodological and statistical approaches to mitigate the impact of self-selection bias on NSSI research.(c) 2023 The Author/sCC BY-NC 4.0https://creativecommons.org/licenses/by-nc/4.0/Research participationstudy recruitmentvolunteer biasJournal article10.1111/sltb.129871943-278Xjournal-article843-852https://www.ncbi.nlm.nih.gov/pubmed/37555729