Ann-Christin Haag

• PhD
• Assistant Professor at University Hospital Ulm

Associations of adolescents' smartphone use and well‐being have been contradictory. The present study investigates patterns of smartphone use and psychosocial risk / protective factors in US adolescents during COVID‐19 and examines their associations with depression symptom trajectories from 5 yearly waves beginning prior to the COVID‐19 pandemic....

Considerable attention has been devoted to the concept of flexible emotion regulation, which de-emphasizes the importance of any specific regulatory strategy in favor of the flexible deployment of strategies in response to specific situational challenges. The bulk of research in this area has been conducted on adult samples. Research on emotion reg...

Childhood sexual abuse (CSA) and bullying victimization are well-established risk factors for deliberate self-harm (DSH) and suicidal ideation (SI). Research ties aspects of self-concept, such as self-esteem, with victimization and self-harm. Yet, there is limited evidence of the role of multidimensional self-concept in the victimization-self-harm...

Flexible self-regulation has been shown to be an adaptive ability. This study adapted and validated the adult Flexible Regulation of Emotional Expression (FREE) Scale for use with youth (FREE-Y) in community and maltreatment samples. The FREE-Y measures the ability to flexibly enhance and suppress emotion expression across an array of hypothetical...

The present study elucidates heterogeneity in post-traumatic stress symptoms (PTSS) across adolescence in a sample of youth who have experienced myriad types and combinations of potentially traumatic events (PTEs), including substantiated physical abuse, sexual abuse, neglect and/or at least one other self-reported PTE. A machine learning technique...

The Child Behavior Checklist (CBCL 1.5–5 years) posttraumatic stress disorder (PTSD) subscale by Dehon & Scheeringa (2006) as a screener for PTSD in trauma-exposed young children has yielded inconsistent results so far. Therefore, the aim of this study was to create and examine the validity of alternative CBCL-PTSD subscales and compare them to the...

Heterogeneity in the course of posttraumatic stress symptoms (PTSS) following a major life trauma such as childhood sexual abuse (CSA) can be attributed to numerous contextual factors, psychosocial risk, and family/peer support. The present study investigates a comprehensive set of baseline psychosocial risk and protective factors including online...

Child sexual abuse (CSA) is associated with revictimization and sexual risk-taking behaviours. The Internet has increased the opportunities for teens to access sexually explicit imagery and has provided new avenues for victimization and exploitation. Online URL activity and offline psychosocial factors were assessed for 460 females aged 12–16 (CSA...

Females exposed to child sexual abuse (CSA) are at an increased risk of experiencing further victimization in adolescence. Associations between CSA and several forms of cyber and in-person peer bullying victimization were assessed in a prospective, longitudinal study. Females exposed to substantiated CSA and a matched comparison group (N = 422) wer...

Objective: Early childhood is a high-risk period for exposure to traumatic medical events due to injury/illness. It is also one of the most important and vulnerable periods due to rapid development in neurobiological systems, attachment relationships, cognitive and linguistic capacities, and emotion regulation. The aim of this topical review is to...

Objective: Cognitive models of posttraumatic stress disorder highlight posttraumatic cognitions (PTCs) as a crucial mechanism of trauma adjustment. So far, only dysfunctional PTCs have been investigated in detail. Research on functional PTCs is scarce. This study addresses this gap by developing and validating a self-report measure called Functiona...

Background: Young children are at particular risk for injury. Ten per cent to twenty-five per cent develop posttraumatic stress disorder (PTSD). However, no empirically supported preventive interventions exist. Therefore, this study evaluated the efficacy of a standardised targeted preventive intervention for PTSD in young injured children. Metho...

It has been recognized that the prevalence of posttraumatic stress disorder (PTSD) in very young children depends on the diagnostic criteria. Thus far, studies have investigated the proposed ICD-11 criteria for PTSD only in samples of children older than 6 years. The aim of this study was to test the diagnostic agreement between the ICD-11 and the...

Objective: Although injury severity and parental stress are strong predictors of posttraumatic adjustment in young children after burns, little is known about the interplay of these variables. This study aimed at clarifying mediation processes between injury severity and mother's, father's, and young child's acute stress. Structural equation model...

Background: Accidental injury represents the most common type of traumatic event experienced by children under the age of 6 years. Around 10-30 % of young injured children will go on to develop post-traumatic stress disorder (PTSD) and other co-morbid conditions. Parents of injured children are also at risk of PTSD, and this is associated with sho...

Background: Although previous research has consistently found considerable rates of acute stress disorder (ASD) in children with accidental injuries, knowledge about determinants of ASD remains incomplete. Guilt is a common reaction among children after a traumatic event and has been shown to contribute to posttraumatic stress disorder. However, i...