Announcement of the Registered Report “Can a Variant of the Implicit Association Test Detect Nonsuicidal Self-Injury in a Clinical Population? A Registered Report” Announcements Announcement of the Registered Report “Can a Variant of the Implicit Association Test Detect Nonsuicidal Self- Injury in a Clinical Population? A Registered Report” Femke Cathelyn 1 § , Tilia Linthout 1 § , Pieter Van Dessel 1 , Laurence Claes 2,3 , Jan De Houwer 1 [1] Department of Experimental Clinical and Health Psychology, Ghent University, Ghent, Belgium. [2] Faculty of Psychology and Educational Sciences, University of Leuven, Leuven, Belgium. [3] Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium. §These authors contributed equally to this work. Clinical Psychology in Europe, 2023, Vol. 5(1), Article e11499, https://doi.org/10.32872/cpe.11499 Published (VoR): 2023-03-31 Handling Editor: Cornelia Weise, Philipps-University of Marburg, Marburg, Germany Corresponding Author: Tilia Linthout, Department of Experimental Clinical and Health Psychology, Ghent University, H. Dunantlaan 2, 9000 Ghent, Belgium. Tel: +32 479 19 31 25. E-mail: Tilia.Linthout@UGent.be Editor's note: This is an announcement of a Registered Report which received In-Principal- Acceptance (IPA) to be published in “Clinical Psychology in Europe”. The study protocol is publicly accessible at https://doi.org/10.23668/psycharchives.12576. In this announcement, a brief summary of the study protocol is presented. Background Nonsuicidal self-injury (NSSI) is a severe and prevalent mental health problem (Nock, 2010). Measures to detect which individuals are at risk for NSSI would be valuable for clinical practice. However, we still lack strong predictors of future NSSI behaviour, with the most notable exception being prior NSSI behaviour (Franklin et al., 2017; Griep & MacKinnon, 2022; Kiekens et al., 2018; Turner et al., 2013; Whitlock et al., 2013). Yet, the measurement of prior NSSI behaviour with self-report measures can be difficult because individuals may be motivated to conceal this harmful behaviour (Long, 2018; MacDonald et al., 2020; Simone & Hamza, 2020). To overcome this problem, an implicit measure has been developed that assesses automatic responding to statements about prior NSSI behaviour (i.e., the past nonsuicidal self-injury Implicit Association Test: P-NSSI-IAT; This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License, CC BY 4.0, which permits unrestricted use, distribution, and reproduction, provided the original work is properly cited. https://crossmark.crossref.org/dialog/?doi=10.32872/cpe.11499&domain=pdf&date_stamp=2023-03-31 https://orcid.org/0000-0003-4073-0465 https://orcid.org/0000-0001-7448-179X https://orcid.org/0000-0002-3401-780X https://orcid.org/0000-0002-2287-3158 https://orcid.org/0000-0003-0488-5224 https://doi.org/10.23668/psycharchives.12576 https://www.psychopen.eu/ https://cpe.psychopen.eu/ https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ Cathelyn et al., 2021). Previous studies tested the predictive utility of this measure in online studies with samples of at risk participants and produced promising results (Franklin et al., 2017; Sohn et al., 2021). Aims The main aim of this study is to validate the P-NSSI-IAT by assessing its ability to detect prior NSSI behaviour in a sample of clinical patients. Method We will target patients who receive outpatient treatment for various conditions. Partici­ pants will first complete the P-NSSI-IAT. Next, they will be asked how many times they have intentionally cut or carved their skin without intending to kill themselves in the past twelve months and the past 30 days and how likely they would be to intentionally cut or carve their skin without intending to kill themselves in the future. Discussion The registered study is the first to examine the clinical utility of a new implicit measure for prior NSSI behaviour (the P-NSSI-IAT). It will provide an answer to the question whether the P-NSSI-IAT allows detection of self-rated prior NSSI and future likelihood of NSSI in a sample of clinical patients. Funding: This manuscript is supported by Ghent University grant BOF16/MET_V/002 to JDH. Acknowledgments: The authors have no additional (i.e., non-financial) support to report. Competing Interests: The authors have declared that no competing interests exist. S u p p l e m e n t a r y M a t e r i a l s The study protocol for this Registered Report is publicly accessible via PsychArchives.org (see Index of Supplementary Materials below). Index of Supplementary Materials Cathelyn, F., Linthout, T., Van Dessel, P., Claes, L., & De Houwer, J. (2023). Supplementary materials to "Announcement of the Registered Report “Can a variant of the Implicit Association Test detect nonsuicidal self-injury in a clinical population? A Registered Report”" [Pre-registration protocol]. PsychArchives. https://doi.org/10.23668/psycharchives.12576 Registered Report Announcement 2 Clinical Psychology in Europe 2023, Vol. 5(1), Article e11499 https://doi.org/10.32872/cpe.11499 https://doi.org/10.23668/psycharchives.12576 https://www.psychopen.eu/ R e f e r e n c e s Cathelyn, F., van Dessel, P., & de Houwer, J. (2021). Predicting nonsuicidal self‐injury using a variant of the Implicit Association Test. Suicide and Life-Threatening Behavior, 51(6), 1259–1271. https://doi.org/10.1111/sltb.12808 Franklin, J. C., Ribeiro, J. D., Fox, K. R., Bentley, K. H., Kleiman, E. M., Huang, X., Musacchio, K. M., Jaroszewski, A. C., Chang, B. P., & Nock, M. K. (2017). Risk factors for suicidal thoughts and behaviors: A meta-analysis of 50 years of research. Psychological Bulletin, 143(2), 187–232. https://doi.org/10.1037/bul0000084 Griep, S. K., & MacKinnon, D. F. (2022). Does nonsuicidal self-injury predict later suicidal attempts? A review of studies. Archives of Suicide Research, 26(2), 428–446. https://doi.org/10.1080/13811118.2020.1822244 Kiekens, G., Hasking, P., Boyes, M., Claes, L., Mortier, P., Auerbach, R. P., Cuijpers, P., Demyttenaere, K., Green, J. G., Kessler, R. C., Myin-Germeys, I., Nock, M. K., & Bruffaerts, R. (2018). The associations between non-suicidal self-injury and first onset suicidal thoughts and behaviors. Journal of Affective Disorders, 239, 171–179. https://doi.org/10.1016/j.jad.2018.06.033 Long, M. (2018). ‘We’re not monsters … we’re just really sad sometimes:’ Hidden self-injury, stigma and help-seeking. Health Sociology Review, 27(1), 89–103. https://doi.org/10.1080/14461242.2017.1375862 MacDonald, S., Sampson, C., Turley, R., Biddle, L., Ring, N., Begley, R., & Evans, R. (2020). Patients’ experiences of emergency hospital care following self-harm: Systematic review and thematic synthesis of qualitative research. Qualitative Health Research, 30(3), 471–485. https://doi.org/10.1177/1049732319886566 Nock, M. K. (2010). Self-injury. Annual Review of Clinical Psychology, 6(1), 339–363. https://doi.org/10.1146/annurev.clinpsy.121208.131258 Simone, A. C., & Hamza, C. A. (2020). Examining the disclosure of nonsuicidal self-injury to informal and formal sources: A review of the literature. Clinical Psychology Review, 82, Article 101907. https://doi.org/10.1016/j.cpr.2020.101907 Sohn, M. N., McMorris, C. A., Bray, S., & McGirr, A. (2021). The Death-Implicit Association Test and suicide attempts: A systematic review and meta-analysis of discriminative and prospective utility. Psychological Medicine, 51(11), 1789–1798. https://doi.org/10.1017/S0033291721002117 Turner, B. J., Layden, B. K., Butler, S. M., & Chapman, A. L. (2013). How often, or how many ways: Clarifying the relationship between non-suicidal self-injury and suicidality. Archives of Suicide Research, 17(4), 397–415. https://doi.org/10.1080/13811118.2013.802660 Whitlock, J., Muehlenkamp, J., Eckenrode, J., Purington, A., Baral Abrams, G., Barreira, P., & Kress, V. (2013). Nonsuicidal self-injury as a gateway to suicide in young adults. Journal of Adolescent Health, 52(4), 486–492. https://doi.org/10.1016/j.jadohealth.2012.09.010 Cathelyn, Linthout, Van Dessel et al. 3 Clinical Psychology in Europe 2023, Vol. 5(1), Article e11499 https://doi.org/10.32872/cpe.11499 https://doi.org/10.1111/sltb.12808 https://doi.org/10.1037/bul0000084 https://doi.org/10.1080/13811118.2020.1822244 https://doi.org/10.1016/j.jad.2018.06.033 https://doi.org/10.1080/14461242.2017.1375862 https://doi.org/10.1177/1049732319886566 https://doi.org/10.1146/annurev.clinpsy.121208.131258 https://doi.org/10.1016/j.cpr.2020.101907 https://doi.org/10.1017/S0033291721002117 https://doi.org/10.1080/13811118.2013.802660 https://doi.org/10.1016/j.jadohealth.2012.09.010 https://www.psychopen.eu/ Clinical Psychology in Europe (CPE) is the official journal of the European Association of Clinical Psychology and Psychological Treatment (EACLIPT). PsychOpen GOLD is a publishing service by Leibniz Institute for Psychology (ZPID), Germany. Registered Report Announcement 4 Clinical Psychology in Europe 2023, Vol. 5(1), Article e11499 https://doi.org/10.32872/cpe.11499 https://www.psychopen.eu/