Journal of Child Psychology and Psychiatry最新文献

{"title":"Research Review: Mathematical skills in children with developmental language disorder - a systematic review and meta-analysis.","authors":"Anne Mari Høgetveit,Esther Tamara Canrinus,Enrica Donolato,Monica Melby-Lervåg","doi":"10.1111/jcpp.70138","DOIUrl":"https://doi.org/10.1111/jcpp.70138","url":null,"abstract":"BACKGROUNDLanguage is an essential skill for learning and academic achievement; therefore, children with developmental language disorder (DLD) are at risk for learning difficulties. Previous research has indicated a higher prevalence of mathematical difficulties in children with DLD compared to control children without such difficulties. However, the extent to which DLD and mathematical difficulties co-occur, as well as the nature of the difficulties, remains unclear.METHODSWe performed a meta-analysis of 30 studies examining the mathematical skills of children with DLD compared to controls and examined moderators related to children's age, cognitive abilities, mathematical domains, diagnostic status, and publication type.RESULTSChildren with DLD performed approximately 1 SD (Hedges' g = -1.03) below age-matched controls in mathematics. Group differences were moderated by the type of mathematical task, with children with DLD being more impaired in arithmetic, counting, word problems, and composite math skills than in tasks evaluating Arabic number knowledge and magnitude judgment. There was a small-study effect, but publication bias was not confirmed.CONCLUSIONSChildren with DLD perform considerably more poorly than controls in mathematics and are at a high risk of mathematical difficulties. This supports the notion that these children have a complex profile of difficulties.","PeriodicalId":187,"journal":{"name":"Journal of Child Psychology and Psychiatry","volume":"11 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147483471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial: ADHD persistence - the interplay of genes, socioeconomic context, and symptom domains over development.","authors":"Phoebe Thomson,Divyangana Rakesh","doi":"10.1111/jcpp.70150","DOIUrl":"https://doi.org/10.1111/jcpp.70150","url":null,"abstract":"Persistence of childhood ADHD symptoms into adolescence and adulthood is common. However, persistence is not simply a continuation of early high severity ADHD. Rather, it is the product of influences from individual-level genetic liability, one's environmental context, and their interplay. The field has often focused on cross-sectional ADHD severity and genetic load. However, environments - such as one's socioeconomic context - exert their own influence over development independently of genetics, as well as modulate genetic influences. Importantly, these genetic and environmental effects vary significantly between inattention and hyperactivity/impulsivity symptom domains, emphasizing the need to consider these domains separately when studying persistence risk. This article outlines a unifying persistence framework reflecting the changing contributions of genes, environmental context, and their interaction over time, offering a path to a more complete understanding of risk for symptom persistence.","PeriodicalId":187,"journal":{"name":"Journal of Child Psychology and Psychiatry","volume":"88 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147471697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effectiveness of the school-based internet intervention StresSOS for the prevention of mental health problems in young people: a randomized controlled trial as part of the ProHEAD consortium.","authors":"Laya Lehner,Vera Gillé,Markus Moessner,Sabrina Baldofski,Stephanie Bauer,Katja Becker,Silke Diestelkamp,Alisa Hiery,Michael Kaess,Julian Koenig,Sophia Lustig,Christine Rummel-Kluge,Rainer Thomasius,Heike Eschenbeck, ","doi":"10.1111/jcpp.70145","DOIUrl":"https://doi.org/10.1111/jcpp.70145","url":null,"abstract":"BACKGROUNDGiven the high prevalence of mental illnesses in adolescents, there is an urgent need for effective prevention strategies. The aim of this study was to evaluate the school-based internet intervention StresSOS for the universal prevention of mental illnesses in youth.METHODSA two-arm, randomized controlled trial was conducted. Participants were recruited from schools across five regions of Germany. Young people between the ages of 12 and 25 years without mental health problems were invited to the trial and randomly assigned to StresSOS or to the attention placebo control condition, stratified by sex. Participants in both conditions received eight web-based sessions with information and exercises and weekly e-mail teasers about program content and a monitoring survey. StresSOS comprised content on life skills, particularly stress management and mental health literacy, and the control condition content comprised healthy nutrition. The primary outcome was self-reported mental health status at a 12-month follow-up. Intention-to-treat analyses were calculated. The trial was preregistered with the German Register of Clinical Trials (DRKS00014693, see https://drks.de/search/en/trial/DRKS00014693).RESULTSA total of 5,268 eligible students were invited to participate, 2,327 (44%) activated their account and were randomized to StresSOS (n = 1,154) or to the control condition (n = 1,173). Due to COVID-19-related school closures, 1,209 were lost to follow-up, and data from 1,118 students were analyzed (535 in StresSOS and 583 in the control group). Participation in StresSOS led to significantly reduced incidences of emerging mental health problems at the 12-month follow-up (controls: n = 162 [28%] 'with problems'; StresSOS: n = 113 [21%] 'with problems'; OR 0.70, 95% CI [0.52, 0.92], p = .01).CONCLUSIONSStresSOS was effective in universally preventing the onset of mental health problems, with a small effect. Internet interventions have the potential to contribute to a reduction of the disease burden in young people.","PeriodicalId":187,"journal":{"name":"Journal of Child Psychology and Psychiatry","volume":"8 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147439304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research Review: Measuring life impact of youth mental health difficulties: scoping umbrella review of 80 instruments.","authors":"Karolin R Krause,Sophie Chung,Christiane Konstantopoulos,Terri Rodak,Ana Calderón,Nichol Edwards Snagg,Kristin Cleverley,Nancy J Butcher,Giovanni A Salum,Kathleen R Merikangas,Peter Szatmari","doi":"10.1111/jcpp.70134","DOIUrl":"https://doi.org/10.1111/jcpp.70134","url":null,"abstract":"BACKGROUNDMental health symptoms affect children and youths' functioning, quality of life (QOL), and well-being in daily life. While this 'life impact' is a critical outcome, there is a lack of conceptual clarity and widely endorsed outcome measurement instruments (OMI) to support consistent assessment across studies. This scoping umbrella review sought to map OMIs that assess life impact through measures of functioning, QOL, or well-being. Specifically, our aims were to: identify life impact OMIs from existing reviews, compare OMI design characteristics, descriptively appraise essential aspects of development quality for selected OMIs, and assess how consistently reviews identified OMI target constructs.METHODSWe searched six databases for systematic, scoping, rapid, or narrative reviews of functioning, QOL, or well-being OMIs for 6-to-24-year-olds with primary mental health concerns. We separately retrieved original development/validation reports for each OMI and extracted information on the target construct and key design characteristics. For a subset of OMIs, we descriptively appraised essential features of OMI development quality.RESULTSWe identified 80 OMIs of functioning (n = 35), QOL (n = 33), and well-being (n = 12). Two-thirds were developed for children and youth up to 18 years, but none targeted young adults aged 19-24. Functioning OMIs were frequently designed for multi-informant assessment; QOL and well-being OMIs were mainly self-reported. Most functioning OMIs were originally validated in populations with mental health difficulties, unlike OMIs of QOL and well-being. For over one quarter of OMIs, the target construct was misclassified in at least one review, with frequent conflation of QOL and well-being.CONCLUSIONSMental health difficulties impact life across functioning, QOL, and well-being. Life impact is a core outcome to track in clinical research and practice. This review provides a roadmap to selecting OMIs of life impact in youth mental health based on OMI design characteristics.","PeriodicalId":187,"journal":{"name":"Journal of Child Psychology and Psychiatry","volume":"15 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147393918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Violent and sexual victimisation and incident anxiety, mood and substance use disorders in childhood and adolescence: a co-sibling study.","authors":"Joonas Pitkänen,Amir Sariaslan,Lauren Bishop,Mikko Aaltonen,Laura Mielityinen,Taina Laajasalo,Noora Ellonen,Pekka Martikainen","doi":"10.1111/jcpp.70144","DOIUrl":"https://doi.org/10.1111/jcpp.70144","url":null,"abstract":"BACKGROUNDStudies on the association between victimisation in childhood and adolescence and psychiatric disorders increasingly acknowledge that these associations might be partly confounded by unmeasured familial factors. However, previous quasi-experimental evidence is largely based on retrospective self-reported data with potential response biases and small samples.METHODSWe measured psychiatric disorders and victimisation events from routinely collected administrative datasets on Finnish total birth cohorts 1996-2005. We identified all violent and sexual victimisation events using plaintiff information taken from registers containing data on crimes reported to the police between birth and the end of 2020. Incident anxiety, mood and substance use disorders were identified from registers containing records of inpatient and specialised outpatient psychiatric care. We compared all those exposed to victimisation to five population controls and their unexposed siblings, with the latter thereby adjusting for shared unobserved familial factors. We used stratified Cox regression models to estimate the associations between victimisation and the psychiatric disorders, with a follow-up from victimisation until the outcome, exit from the population or the end of 2020.RESULTSViolent and sexual police-reported victimisation were both associated with an increased risk of psychiatric disorders, with adjusted hazard ratios ranging between 2.3 (95% Confidence Interval [CI]: 2.2, 2.4) for the association between violent victimisation and mood disorders and 3.9 (3.7, 4.1) for the association between sexual victimisation and anxiety disorders. In the sibling comparisons, the associations attenuated but remained clearly elevated, with the corresponding hazard ratios ranging between 1.9 (1.7, 2.1) and 2.6 (2.3, 2.9).CONCLUSIONSThe results are consistent with a causal interpretation of the association between police-reported victimisation and psychiatric disorders. Mental health-related support after victimisation is an important task as it may prevent the onset of psychiatric disorders. Prevention of victimisation might decrease the number of psychiatric disorders in the population.","PeriodicalId":187,"journal":{"name":"Journal of Child Psychology and Psychiatry","volume":"49 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Children's oppositional defiant disorder and mother-child interpersonal brain synchrony: the role of maternal meta-emotion philosophy.","authors":"Peizhong Wang,Jingwei Ma,Lu Qiao,Ting He,Jintao Zhang,Xiuyun Lin","doi":"10.1111/jcpp.70137","DOIUrl":"https://doi.org/10.1111/jcpp.70137","url":null,"abstract":"BACKGROUNDParent-child interpersonal brain synchrony (IBS) has been suggested to play an important role in children's socio-emotional functioning and may be relevant to oppositional defiant disorder (ODD). Yet, empirical evidence regarding IBS deficits between parents and ODD children remains limited, as well as their association with ODD symptoms within different emotional parenting contexts. Therefore, the present study investigated the IBS among mother-child dyads by utilizing functional near-infrared spectroscopy (fNIRS) and the moderating role of maternal meta-emotion philosophy between IBS and ODD symptoms.METHODSWe initially recruited 72 mother-child dyads and included data from 63 dyads in the final analyses after data quality checks, including 29 ODD children and 34 typically developing (TD) children. Each dyad was measured for IBS while completing a computer-based game, including cooperative and independent conditions. The children's ODD symptoms and maternal meta-emotion philosophy were measured using questionnaires.RESULTSThe IBS deficits of left postcentral gyrusm-left dorsal superior frontal gyrusc, left middle frontal gyrusm-right postcentral gyrusc, and right angular gyrusm-right dorsal superior frontal gyrusc were revealed among ODD mother-child dyads across multiple time-lags. In addition, IBS negatively predicted ODD symptoms when mothers were involved in their children's emotions and positively predicted ODD symptoms when mothers were not involved in their children's emotions.CONCLUSIONSThese findings suggested a potential \"Other-(Social) Cognition-Self-Regulation\" IBS network, wherein \"Other-Cognition\" involves social cognitive processing of information from others, and \"Self-Regulation\" consists of the regulation of oneself. Furthermore, the deficits within this IBS network among ODD mother-child dyads are prospectively predictive of children's later ODD symptoms. Additionally, our research indicated that whether the mother is involved in the child's emotions is crucial when considering the impact of IBS on the development of ODD symptoms.","PeriodicalId":187,"journal":{"name":"Journal of Child Psychology and Psychiatry","volume":"31 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147359278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Directionality of longitudinal associations between frontostriatal structural connectivity and depressive symptoms in adolescent girls.","authors":"Marjolein E A Barendse,Chris J Machle,Rogier Kievit,Jennifer H Pfeifer","doi":"10.1111/jcpp.70127","DOIUrl":"https://doi.org/10.1111/jcpp.70127","url":null,"abstract":"BACKGROUNDIndividual differences in the structure and function of the frontostriatal reward network have been related to depression. However, there is a strong need for prospective, longitudinal studies aiming to understand the role of frontostriatal networks in depression in a developmental context. We aimed to examine bidirectional associations between structural connectivity in the frontostriatal reward network and depressive symptoms in adolescent girls, as well as to determine to what extent the directionality and strength of these associations are dependent on age or pubertal stage.METHODSAbout 596 observations from 174 adolescent girls (up to 4 time points per person, ages 10-17) were included. Depressive symptoms were measured with the Center for Epidemiological Studies-Depression scale for Children and pubertal stage with the Pubertal Development Scale and the Tanner Stage Line Drawings. Probabilistic tractography was done on diffusion-weighted imaging scans to obtain average fractional anisotropy from ventral striatum to orbitofrontal cortex and ventral striatum to ventromedial prefrontal cortex tracts.RESULTSLinear mixed-effects models showed that frontostriatal connectivity was not associated with subsequent change in depressive symptoms. Depressive symptoms were also not associated with subsequent change in frontostriatal connectivity. Depressive symptoms increased with age and pubertal stage, but the association with connectivity did not vary with age or pubertal stage.CONCLUSIONSThis suggests previously reported cross-sectional associations might not pertain to developmental effects in girls. Future research should examine prospective associations between frontostriatal functional connectivity and depression.","PeriodicalId":187,"journal":{"name":"Journal of Child Psychology and Psychiatry","volume":"46 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147350579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Outcome and cost-effectiveness of transdiagnostic cognitive behavioral therapy compared with management as usual for youth with common mental health problems: Long-term results from the Mind-My-Mind randomized trial.","authors":"Ditte Vassard,Martin Køster Rimvall,Rasmus Trap Wolf,Robin Christensen,Sabrina M Nielsen,Kerstin Jessica Plessen,Frank Verhulst,Niels Bilenberg,Per Hove Thomsen,Mikael Thastum,Simon-Peter Neumer,Anne Katrine Pagsberg,Wendy K Silverman,Christoph U Correll,Pia Jeppesen","doi":"10.1111/jcpp.70128","DOIUrl":"https://doi.org/10.1111/jcpp.70128","url":null,"abstract":"BACKGROUNDCredible long-term outcomes from randomized trials evaluating the effectiveness and cost-effectiveness of preventive programs for mental health problems are needed. We compared long-term effects of the Mind My Mind (MMM) transdiagnostic cognitive behavioral therapy (CBT) program to management as usual (MAU).METHODSThe study was a pragmatic, multisite, randomized superiority trial (2017-2019) involving youths aged 6-16 years with anxiety, depressive symptoms, and/or behavioral disturbances, recruited through family self-referral. The MMM intervention included 9-13 weekly CBT sessions. The primary outcome was change from baseline in parent-reported impact of mental health problems at 3-year follow-up post-randomization using the Strengths and Difficulties Questionnaire (SDQ) impact scale. Register-based outcomes tracked youths' psychiatric diagnoses in mental health services. To assess cost-effectiveness, we calculated the incremental costs and incremental quality-adjusted life years (QALYs). All primary analyses followed the intention-to-treat (ITT) approach.CLINICAL TRIALS REGISTRATIONID NCT04804917.RESULTSAmong 396 youths randomized (baseline mean [SD] age, 10.3 [2.4] years; 52.0% boys; MMM n = 197, MAU n = 199), the 3-year follow-up (median 167 weeks; range 124-203 weeks) primary outcome data were available in 69.0% and 59.3%, respectively. The decrease in SDQ-impact-score from baseline to 3-year follow-up (4.12→1.79 points [MMM] and 4.21→1.85 [MAU]) was similar (between-group difference, 0.06 [95% CI -0.41 to 0.52]; p = .81). An equal proportion (25%) of youths in MMM and MAU were diagnosed with any mental disorder during follow-up (HR 1.01, 95% CI 0.68-1.50). Total costs over the intervention period were higher in the MMM group (incremental costs 3,014 Euros [95% CI: 2.174-3.855]). Cost-effectiveness analyses favored MMM: QALY net gain 0.121 (95% CI 0.045-0.196); the cost-effectiveness ratio was 24,789 Euro/QALY.CONCLUSIONSAlthough MMM was potentially cost-effective, the beneficial effects diminished over 3 years post-treatment. The findings highlight the need for strategies to sustain long-term effects.","PeriodicalId":187,"journal":{"name":"Journal of Child Psychology and Psychiatry","volume":"90 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147329541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Changes in idiographic coping in youth treated for an anxiety disorder.","authors":"Marisa Meyer,Thomas M Olino,Anne Marie Albano,John C Piacentini,Scott N Compton,Elizabeth A Gosch,Philip C Kendall","doi":"10.1111/jcpp.70139","DOIUrl":"https://doi.org/10.1111/jcpp.70139","url":null,"abstract":"BACKGROUNDYouth anxiety disorders are highly prevalent and associated with adverse outcomes. Prior research demonstrated improvement in anxiety symptoms following evidence-based treatment; however, not all youth experience symptom remission, nor do they consistently maintain gains. We examined idiographic changes in youths' perceived ability to cope with individualized anxiety-provoking situations from pretreatment to six-month follow-up in the Child/Adolescent Anxiety Multimodal Treatment Study.METHODSYouth diagnosed with a principal anxiety disorder (N = 488; ages 7-17; 50.4% male) were randomized to cognitive-behavioral therapy (CBT), pharmacotherapy (SRT), combination of CBT and SRT, or pill placebo. Youth's perceived ability to cope (i.e., perceived coping efficacy) was assessed independently using youth self-reports and caregiver-reports on the Coping Questionnaire, an idiographic measure with anxiety-provoking situations individualized to each youth. Changes in perceived coping efficacy were examined across treatment conditions using multilevel models, assessed across six timepoints. Models estimating the quadratic effect of time fit better than models estimating the linear effect.RESULTSThere was a significant interaction between the quadratic effect of time and treatment condition, indicating perceptions of youth coping efficacy increase from pretreatment to six-month follow-up, yet at different times across treatment based on treatment condition; this finding was observed per both youth- and caregiver-reports. Perceptions of coping efficacy did not differ based on treatment condition for either informant at pretreatment or six-month follow-up; however, post hoc analyses revealed significant differences in perceptions of youth coping efficacy at all interim assessments.CONCLUSIONSResults demonstrate that effective treatments for youth anxiety disorders improved youth- and caregiver-reports of perceived coping with youths' individualized anxiety-provoking situations. Future efforts could prioritize idiographic assessments to facilitate effective treatments.","PeriodicalId":187,"journal":{"name":"Journal of Child Psychology and Psychiatry","volume":"296 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147329558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Away from violence: A latent transition analysis on support for violent and non-violent radicalization among adolescents.","authors":"Diana Miconi,Michela Zambelli,Aoudou Njingouo Mounchingam,Cécile Rousseau","doi":"10.1111/jcpp.70142","DOIUrl":"https://doi.org/10.1111/jcpp.70142","url":null,"abstract":"BACKGROUNDSupport for violent and non-violent radicalization co-exists in some, but not all, adolescents. Yet, little is known about how adolescents transition towards or away from violent and/or non-violent radicalization over time. Within a socio-ecological framework, this study investigates how Canadian adolescents move from profiles that support violent radicalization to non-violent profiles and vice-versa and whether profile belonging is associated with social-, school- and family-related factors, psychological distress and specific ideologies.METHODSHigh school students (N = 574; Mage = 15.1; SDage = 0.76; 47.7% girls) completed an online survey in 2023 and 2024. A latent transition analysis on scores of support for violent and non-violent radicalization was conducted. Multinomial regression was used to explore the associations between profiles and variables of interest.RESULTSAdolescents moved significantly across the six identified profiles over time. School unsafety was associated with an increased probability of being in more violent profiles, whereas depressive symptoms were lower in disengaged and violent profiles. Glorification of violence was higher in the more violent and less activist profile. Adolescents reporting more distress related to international conflicts and pro-environmental ideologies were more likely to belong to more activist profiles, including those supportive of violence.CONCLUSIONSExploration of activism and violence as idioms of protest is common during adolescence and youth's attitudes in this regard are very dynamic, influenced by local and global grievances. Primary prevention efforts should accompany youth in their exploration in order to support non-violent avenues as responses to global conflicts, as well as daily injustices.","PeriodicalId":187,"journal":{"name":"Journal of Child Psychology and Psychiatry","volume":"51 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147329570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}