Outputs (25)

Sharing data to better understand one of the world’s most significant shared experiences: Data Resource Profile of the longitudinal COVID-19 Psychological Research Consortium (C19PRC) Study (2022)
Journal Article
McBride, O., Butter, S., Hartman, T. K., Murphy, J., Hyland, P., Shevlin, M., Gibson-Miller, J., Levita, L., Mason, L., Martinez, A. P., McKay, R., Lloyd, A., Stocks, T. V., Bennett, K. M., Vallières, F., Karatzias, T., Valiente, C., Vazquez, C., Contrer

This paper serves to alert IJPDS readers to the availability of a major new longitudinal survey data resource, the COVID-19 Psychological Research Consortium (C19PRC) Study, which is being released for secondary use via the Open Science Framework. Th... Read More about Sharing data to better understand one of the world’s most significant shared experiences: Data Resource Profile of the longitudinal COVID-19 Psychological Research Consortium (C19PRC) Study.

The impact of childhood adversity and mental health episodes prior to young person suicide (CHASE): a longitudinal case-control individual-level linked hospital data study, Scotland UK 1981-2017 (2022)
Presentation / Conference Contribution
Dougall, N., Savinc, J., Maxwell, M., Karatzias, T., O’Connor, R. C., Williams, B., …Nolan, L. (2022, November). The impact of childhood adversity and mental health episodes prior to young person suicide (CHASE): a longitudinal case-control individual

This poster depicts some main findings from a national linked data study of hospital and death records for those young people who have died by suicide. The study summarised in-patient admissions related to childhood adversity and mental health condit... Read More about The impact of childhood adversity and mental health episodes prior to young person suicide (CHASE): a longitudinal case-control individual-level linked hospital data study, Scotland UK 1981-2017.

Can Developmental Trauma Disorder be Distinguished from Posttraumatic Stress Disorder? A Symptom-Level Person-Centered Empirical Approach (2022)
Journal Article
Ford, J., Charak, R., Karatzias, T., Shevlin, M., & Spinazzola, J. (2022). Can Developmental Trauma Disorder be Distinguished from Posttraumatic Stress Disorder? A Symptom-Level Person-Centered Empirical Approach. European Journal of Psychotraumatology, 1

Background: Developmental Trauma Disorder (DTD) is a proposed childhood psychiatric diagnosis for psychopathological and developmental sequela of victimization and attachment trauma extending beyond posttraumatic stress disorder (PTSD). Objective:... Read More about Can Developmental Trauma Disorder be Distinguished from Posttraumatic Stress Disorder? A Symptom-Level Person-Centered Empirical Approach.

Early maladaptive schemas and ICD-11 CPTSD symptoms: Treatment considerations (2022)
Journal Article
Greenblatt-Kimron, L., Karatzias, T., Yonatan, M., Shoham, A., Hyland, P., Ben-Ezra, M., & Shevlin, M. (2023). Early maladaptive schemas and ICD-11 CPTSD symptoms: Treatment considerations. Psychology and Psychotherapy: Theory, Research and Practice, 96(1

Objectives Early maladaptive schemas (EMS) can result from adverse interpersonal traumatic experiences. The ICD-11 updated the concept of disorders following traumatic experiences with the new disorder of complex post-traumatic stress disorder (CPTS... Read More about Early maladaptive schemas and ICD-11 CPTSD symptoms: Treatment considerations.

The development and initial validation of self-report measures of ICD-11 depressive episode and generalized anxiety disorder: The International Depression Questionnaire (IDQ) and the International Anxiety Questionnaire (IAQ) (2022)
Journal Article
Shevlin, M., Hyland, P., Butter, S., McBride, O., Hartman, T. K., Karatzias, T., & Bentall, R. P. (2023). The development and initial validation of self-report measures of ICD-11 depressive episode and generalized anxiety disorder: The International Depre

Background The new International Classification of Diseases came into effect in 2022 (ICD-11; World Health Organization, 2022) and included updated descriptions and diagnostic rules for “Depressive Episode” and “Generalized Anxiety Disorder.” No sel... Read More about The development and initial validation of self-report measures of ICD-11 depressive episode and generalized anxiety disorder: The International Depression Questionnaire (IDQ) and the International Anxiety Questionnaire (IAQ).

Childhood adversity, mental health and suicide (CHASE): a longitudinal case-control linked data study of lifetime inpatient records associated with suicide (2022)
Presentation / Conference Contribution
Savinc, J., Dougall, N., Maxwell, M., Karatzias, T., O'Connor, R., Williams, B., …Nolan, L. (2022). Childhood adversity, mental health and suicide (CHASE): a longitudinal case-control linked data study of lifetime inpatient records associated with suici

Objectives Childhood adversity (CA) carries an increased risk of developing later mental health (MH) problems and suicidal behaviour. This study aimed to summarise lifetime hospital attendances for CA and MH in young people who later died by suicide... Read More about Childhood adversity, mental health and suicide (CHASE): a longitudinal case-control linked data study of lifetime inpatient records associated with suicide.

Mindfulness-based interventions for non-affective psychosis: A comprehensive systematic review and meta-analysis (2022)
Journal Article
Lai King Yip, A., Karatzias, T., & Tong Chien, W. (2022). Mindfulness-based interventions for non-affective psychosis: A comprehensive systematic review and meta-analysis. Annals of Medicine, 54(1), 2340-2353. https://doi.org/10.1080/07853890.2022.2108551

Aim: Although mindfulness-based interventions (MBIs) are routinely used in clinical practice, a comprehensive synthesis of the effectiveness of MBIs for non-affective psychosis has yet to be conducted. The aim in the present review and meta-analysis... Read More about Mindfulness-based interventions for non-affective psychosis: A comprehensive systematic review and meta-analysis.

The role of psychosocial factors in explaining sex differences in major depression and generalized anxiety during the COVID-19 pandemic (2022)
Journal Article
Vallières, F., Murphy, J., McBride, O., Shevlin, M., Gilmore, B., Travers, Á., …Hyland, P. (2022). The role of psychosocial factors in explaining sex differences in major depression and generalized anxiety during the COVID-19 pandemic. BMC Public Heal

Background: Understanding how pandemics differentially impact on the socio-protective and psychological outcomes of males and females is important to develop more equitable public health policies. We assessed whether males and females differed on mea... Read More about The role of psychosocial factors in explaining sex differences in major depression and generalized anxiety during the COVID-19 pandemic.

Validation of the International Trauma Questionnaire – Child and Adolescent Version (ITQ-CA) in a Chinese mental health service seeking adolescent sample (2022)
Journal Article
Ho, G., Liu, H., Karatzias, T., Hyland, P., Cloitre, M., Lueger-Schuster, B., …Shevlin, M. (2022). Validation of the International Trauma Questionnaire – Child and Adolescent Version (ITQ-CA) in a Chinese mental health service seeking adolescent sampl

Background. The International Trauma Questionnaire – Child and Adolescent version (ITQ-CA) is a self-report measure that assesses posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) based on the diagnostic formulation of the 11th version of... Read More about Validation of the International Trauma Questionnaire – Child and Adolescent Version (ITQ-CA) in a Chinese mental health service seeking adolescent sample.

The network structure of ICD-11 adjustment disorder: A comparison of clinical and non-clinical samples (2022)
Journal Article
Levin, Y., Karatzias, T., Shevlin, M., Ben-Ezra, M., Maercker, A., & Bachem, R. (2022). The network structure of ICD-11 adjustment disorder: A comparison of clinical and non-clinical samples. European Psychiatry, 65(1), Article e43. https://doi.org/10.119

Background: ICD-11 adjustment disorder (AjD) is characterized by two main symptom clusters; preoccupation with the stressor and failure to adapt to the stressor. The network analytic approach provides important information on the structural validity... Read More about The network structure of ICD-11 adjustment disorder: A comparison of clinical and non-clinical samples.

The psychological consequences of the Ukraine war: What we know, and what we have to learn (2022)
Journal Article
Shevlin, M., Hyland, P., & Karatzias, T. (2022). The psychological consequences of the Ukraine war: What we know, and what we have to learn. Acta Psychiatrica Scandinavica, 146(2), 105-106. https://doi.org/10.1111/acps.13466

Invited editorial.

State of Ireland's Mental Health: Findings from a nationally representative survey (2022)
Journal Article
Hyland, P., Vallières, F., Shevlin, M., Bentall, R. P., Butter, S., Hartman, T. K., …Fox, R. (2022). State of Ireland's Mental Health: Findings from a nationally representative survey. Epidemiology and Psychiatric Sciences, 31, Article e47. https://doi

Aims. Current information about the prevalence of various mental health disorders in the general adult population of the Republic of Ireland is lacking. In this study, we examined the prevalence of 12 common mental disorders, the proportion of adults... Read More about State of Ireland's Mental Health: Findings from a nationally representative survey.

Tracking the psychological and socio-economic impact of the COVID-19 pandemic in the UK: a methodological report from Wave 5 of the Covid-19 Psychological Research Consortium (C19PRC) Study (2022)
Journal Article
McBride, O., Butter, S., Murphy, J., Hartman, T. K., McKay, R., Hyland, P., …Bentall, R. P. (2022). Tracking the psychological and socio-economic impact of the COVID-19 pandemic in the UK: a methodological report from Wave 5 of the Covid-19 Psychologica

Objectives: The COVID-19 Psychological Research Consortium (C19PRC) Study was established in March 2020 to monitor the psychological and socio-economic impact of the pandemic in the UK and other countries. This paper describes the protocol for Wave 5... Read More about Tracking the psychological and socio-economic impact of the COVID-19 pandemic in the UK: a methodological report from Wave 5 of the Covid-19 Psychological Research Consortium (C19PRC) Study.

Measuring positive memories of home and family during childhood: The development and initial validation of the ‘Memories of Home and Family Scale’ (2022)
Journal Article
Shevlin, M., Redican, E., McElroy, E., Ben-Ezra, M., Karatzias, T., & Hyland, P. (2023). Measuring positive memories of home and family during childhood: The development and initial validation of the ‘Memories of Home and Family Scale’. Current Psycho

There is a burgeoning evidence base highlighting the positive influence of benevolent childhood experiences (BCEs), even in the context of adversity. However, few measures are available to assess BCEs. The current study sought to develop and validate... Read More about Measuring positive memories of home and family during childhood: The development and initial validation of the ‘Memories of Home and Family Scale’.

How is Loneliness Related to Anxiety and Depression: a Population Based Network Analysis in the Early Lockdown Period (2022)
Journal Article
Owczarek, M., Nolan, E., Shevlin, M., Butter, S., Karatzias, T., McBride, O., Murphy, J., Vallieres, F., Bentall, R., Martinez, A., & Hyland, P. (2022). How is Loneliness Related to Anxiety and Depression: a Population Based Network Analysis in the Early

Introduction High risk of mental health problems is associated with loneliness resulting from social distancing measures and ‘lockdowns’ that have been imposed globally due to the COVID-19 pandemic. This study explores the interconnectedness of lon... Read More about How is Loneliness Related to Anxiety and Depression: a Population Based Network Analysis in the Early Lockdown Period.

Prevalence and Predictors of ICD-11 PTSD and Complex PTSD in Young People (2022)
Journal Article
Redican, E., Hyland, P., Cloitre, M., McBride, O., Karatzias, T., Murphy, J., …Shevlin, M. (2022). Prevalence and Predictors of ICD-11 PTSD and Complex PTSD in Young People. Acta Psychiatrica Scandinavica, 146(2), 110-125. https://doi.org/10.1111/acps.1

Objective: The prevalence, construct validity, risk factors and psychopathological correlates associated with ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) as measured by the International Trauma Questionnaire for Children and... Read More about Prevalence and Predictors of ICD-11 PTSD and Complex PTSD in Young People.

The Latent Structure of Child and Adolescent Psychopathology and its Association with Different Forms of Trauma and Suicidality and Self-Harm (2022)
Journal Article
Hyland, P., Karatzias, T., Ford, J. D., Fox, R., & Spinazzola, J. (2022). The Latent Structure of Child and Adolescent Psychopathology and its Association with Different Forms of Trauma and Suicidality and Self-Harm. Research on Child and Adolescent Psych

The Hierarchical Taxonomy of Psychopathology (HiTOP) is a multidimensional and hierarchical model of the latent structure of psychopathology. While HiTOP has received much support in child/adolescent community samples, fewer studies have assessed thi... Read More about The Latent Structure of Child and Adolescent Psychopathology and its Association with Different Forms of Trauma and Suicidality and Self-Harm.

The Ukraine crisis: Mental health resources for clinicians and researchers (2022)
Journal Article
Shevlin, M., Hyland, P., Karatzias, T., Makhashvili, N., Javakhishvili, J., & Roberts, B. (2022). The Ukraine crisis: Mental health resources for clinicians and researchers. Clinical Child Psychology and Psychiatry, 27(3), 521-523. https://doi.org/10.1177

The mental health consequences of the war in Ukraine will be enormous. Mental health professionals who are providing care for people in Ukraine, or those resettled elsewhere, may require access to standardized and validated assessment tools. We have... Read More about The Ukraine crisis: Mental health resources for clinicians and researchers.

Can Developmental Trauma Disorder be Distinguished from Posttraumatic Stress Disorder? A Confirmatory Factor Analytic Test of Four Structural Models (2022)
Journal Article
Ford, J. D., Shevlin, M., Karatzias, T., Charak, R., & Spinazzola, J. (2022). Can Developmental Trauma Disorder be Distinguished from Posttraumatic Stress Disorder? A Confirmatory Factor Analytic Test of Four Structural Models. Research on Child and Adole

Developmental Trauma Disorder (DTD) is a proposed child psychopathology diagnosis with emotion/somatic, attention/behavioral, and self/relational dysregulation symptoms extending beyond posttraumatic stress disorder (PTSD). Confirmatory factor analys... Read More about Can Developmental Trauma Disorder be Distinguished from Posttraumatic Stress Disorder? A Confirmatory Factor Analytic Test of Four Structural Models.

The Ukraine crisis: Mental health resources for clinicians and researchers (2022)
Journal Article
Shevlin, M., Hyland, P., Karatzias, T., Makhashvili, N., Javakhishvili, J., & Roberts, B. (2022). The Ukraine crisis: Mental health resources for clinicians and researchers. Journal of Traumatic Stress, 35(3), 775-777. https://doi.org/10.1002/jts.22837

The mental health consequences of the war in Ukraine will be enormous. Mental health professionals who are providing care for people in Ukraine, or those resettled elsewhere, may require access to standardized and validated assessment tools. We have... Read More about The Ukraine crisis: Mental health resources for clinicians and researchers.

The network structure of ICD-11 Disorders Specifically Associated with Stress: Adjustment Disorder, Prolonged Grief Disorder, Posttraumatic Stress Disorder (PTSD) and Complex PTSD (2022)
Journal Article
Karatzias, T., Knefel, M., Maercker, A., Cloitre, M., Reed, G., Bryant, R., …Hyland, P. (2022). The network structure of ICD-11 Disorders Specifically Associated with Stress: Adjustment Disorder, Prolonged Grief Disorder, Posttraumatic Stress Disorder (

Introduction: The ICD-11 includes a new grouping for “Disorders Specifically Associated with Stress” that contains revised descriptions of Posttraumatic Stress Disorder (PTSD) and Adjustment Disorder (AjD) and new diagnoses in the form of Complex PTS... Read More about The network structure of ICD-11 Disorders Specifically Associated with Stress: Adjustment Disorder, Prolonged Grief Disorder, Posttraumatic Stress Disorder (PTSD) and Complex PTSD.

What makes inpatient treatment for PTSD effective? Investigating daily therapy process factors (2022)
Journal Article
Kratzer, L., Schiepek, G., Heinz, P., Schöller, H., Knefel, M., Haselgruber, A., & Karatzias, T. (2022). What makes inpatient treatment for PTSD effective? Investigating daily therapy process factors. Psychotherapy Research, 32(7), 847-859. https://doi.o

Objective Therapeutic process factors including alliance and motivation are considered to play a key role in the treatment of post-traumatic stress disorder (PTSD). Yet, our understanding of change processes in therapy is mostly based on theoretical... Read More about What makes inpatient treatment for PTSD effective? Investigating daily therapy process factors.

Cultural concepts of distress and complex PTSD: Future directions for research and treatment (2022)
Journal Article
Heim, E., Karatzias, T., & Maercker, A. (2022). Cultural concepts of distress and complex PTSD: Future directions for research and treatment. Clinical Psychology Review, 93, Article 102143. https://doi.org/10.1016/j.cpr.2022.102143

Complex post-traumatic stress disorder (CPTSD) was introduced as a new diagnostic category in ICD-11. It encompasses PTSD symptoms along with disturbances in self-organization (DSO), i.e., affect dysregulation, negative self-concept, and disturbances... Read More about Cultural concepts of distress and complex PTSD: Future directions for research and treatment.

Validation of the International Trauma Interview (ITI) for the Clinical Assessment of ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) in a Lithuanian Sample (2022)
Journal Article
Gelezelyte, O., Roberts, N. P., Kvedaraite, M., Bisson, J. I., Brewin, C. R., Cloitre, M., …Kazlauskas, E. (2022). Validation of the International Trauma Interview (ITI) for the Clinical Assessment of ICD-11 Posttraumatic Stress Disorder (PTSD) and Comp

Background: The 11th revision of the International Classification of Diseases (ICD-11) includes a new diagnosis of complex posttraumatic stress disorder (CPTSD). The International Trauma Interview (ITI) is a novel clinician-administered diagnostic in... Read More about Validation of the International Trauma Interview (ITI) for the Clinical Assessment of ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) in a Lithuanian Sample.

Validation of the International Adjustment Disorder Questionnaire in Israel and Switzerland (2022)
Journal Article
Levin, Y., Bachem, R., Hyland, P., Karatzias, T., Shevlin, M., Ben-Ezra, M., & Maercker, A. (2022). Validation of the International Adjustment Disorder Questionnaire in Israel and Switzerland. Clinical Psychology and Psychotherapy, 29(4), 1321-1330. https

The ICD-11 has introduced a new conceptualization of adjustment disorder (AjD) as a stress response syndrome with core symptoms of preoccupations and failure to adapt to the stressor. The current study aimed to assess the reliability and validity of... Read More about Validation of the International Adjustment Disorder Questionnaire in Israel and Switzerland.