ADHD Symptoms, Peer Problems, and Emotion Dysregulation as Longitudinal and Concurrent Predictors of Adolescent Borderline Personality Features.

OBJECTIVE: ADHD and borderline personality (BP) disorder are highly comorbid and characterized by emotion dysregulation and peer problems. However, limited research has examined social and emotional predictors of BP features in samples that include youth with ADHD. METHOD: Using a sample of 124 youth with and without ADHD (52% female), ADHD symptoms, peer problems, and emotion dysregulation were assessed in childhood (8-13 years) and in adolescence, along with BP features (13-18 years). RESULTS: In addition to the significant effect of ADHD symptoms, teacher-rated child peer victimization and adolescent-reported peer victimization, poorer close friendships, and emotion dysregulation domains significantly predicted adolescent BP features. Greater parent-rated child and adolescent emotion dysregulation domains also significantly predicted adolescent BP features, with ADHD symptoms no longer significant. CONCLUSION: Even for youth with ADHD, peer and emotional vulnerabilities in childhood and adolescence may serve as important markers of risk for adolescent BP features.

Interactive Effects of Parent Emotion Socialization and Child Physiological Reactivity in Predicting Adolescent Borderline Personality Disorder Features.

Theories suggest that a transaction between child biological vulnerability and parent emotion socialization underlies the development of borderline personality disorder (BPD) features. Yet, few studies have examined the interaction between these factors prospectively in at-risk samples. Consequently, this study tested whether parental reactions to children's negative emotions moderated the effect of the child's physiological reactivity to stress in predicting adolescent BPD features in a sample of youth with and without clinical elevations in attention deficit/hyperactivity disorder (ADHD). Participants were 61 children (52% female) and parents (90% mothers). When children were 9-13 years old, their physiological reactivity to a social stressor was assessed based on respiratory sinus arrhythmia (RSA) and skin conductance level (SCL) reactivity; parents also reported on their supportive and non-supportive reactions to their child's negative emotions. Children were followed-up four to five years later at ages 14-18 years old and their BPD features were assessed based on parent and adolescent report. Significant interactions between children's SCL reactivity and parental reactions to children's negative emotions were found in predicting adolescent BPD features. Children with low SCL reactivity to social stress and parents high in supportive/low in non-supportive reactions were lowest in adolescent BPD features. However, greater SCL reactivity predicted greater adolescent BPD features specifically when the parent was high in support or low in non-support. Childhood ADHD symptoms also significantly predicted greater adolescent BPD features. Findings suggest that children with different patterns of SCL reactivity may respond differently to parental reactions to their emotions.

Introduction to the Special Issue: Transdiagnostic Implications of Parental Socialization of Child and Adolescent Emotions.

Developmental research suggests that parent emotion socialization plays a critical role in children's development of emotion-related skills and their risk for psychopathology. Adaptive emotion socialization practices can shape children's capacities to understand and regulate their own emotions, and when maladaptive, these practices can confer risk for both internalizing and externalizing problems, suggesting transdiagnsotic significance. Yet, emerging work suggests that the effects of parent emotion socialization are not universal and may differ based on children's unique vulnerabilities, highlighting the need to examine both parent and child factors within transactional models. Given the developmental shifts in emotion regulation capacities and autonomy across development, there is a great need for longitudinal emotion socialization research, as well as work that accounts for alternative interpretations, in this domain. Additionally, to-date much of the work in this regard has utilized parental report in isolation, making the need for cutting-edge, multi-method approaches highly salient. Further, translating scientific research into parent emotion socialization interventions is still in its infancy, with the majority of available treatments focusing on young children. As such, contributors to this special issue help address these gaps in the literature and examine the implications of a range of parent emotion socialization behaviors in the context of both adaptive and maladaptive child and adolescent emotional development. In this introduction, we highlight major themes of the special issue; further discussion and future directions are offered in the commentary accompanying this special issue.

Adolescent Emotionality and Emotion Regulation in the Context of Parent Emotion Socialization Among Adolescents with Neurodevelopmental Disorders: A Call to Action with Pilot Data.

To date, only three studies have examined the role of emotion socialization in the emotional functioning of youth with neurodevelopmental disorders. As such, this review article with pilot data sought to provide a call to action and first step in addressing this limited research body. Pilot data was collected with 18 adolescents (Mage = 13.5, SD = 1.6; 70% male) with a neurodevelopmental disorder and their primary caregiver. All adolescents were diagnosed with attention-deficit/hyperactivity disorder and displayed a range of comorbid disorders: autism spectrum disorder (27.8%), anxiety (66.7%), depression (44.4%), and disruptive behavior disorders (50%). Adolescents and caregivers completed a conflict discussion task while physiological, observational, and self-report measures of emotion socialization and emotional functioning were measured. Observed supportive parent emotion socialization behaviors were significantly associated with more observed adaptive emotion regulation strategies, and decreased observed and adolescent-reported negative affect, whereas non-supportive emotion socialization behaviors were associated with more observed negative affect and less observed adaptive emotion regulation strategies. Our pilot findings support growing research suggesting that adaptive parent emotion socialization practices can help foster less negative emotionality and better emotion regulation in youth with neurodevelopment disorders. We make a call to action for more emotion socialization research focused on youth with neurodevelopmental disorders, and propose four important directions for future research: 1) Research examining emotion socialization behaviors during daily life, 2) Understanding the nuanced role of emotion socialization practices, 3) Considering diversity in emotion socialization practices with clinical populations, and 4) Longitudinal and intervention research studies.

Childhood ADHD Symptoms, Parent Emotion Socialization, and Adolescent Peer Problems: Indirect Effects Through Emotion Dysregulation.

Although parent reactions to children's negative emotions are important to the development of adolescent social and emotional functioning, there is a lack of research examining this aspect of parenting in samples that include youth with attention-deficit/hyperactivity disorder (ADHD). This study addresses this gap in the research by examining the independent effects of childhood ADHD symptoms and parent reactions to negative emotions in the longitudinal prediction of adolescent emotion dysregulation and peer problems. A sample of 124 youth (52% female) with and without clinical elevations in ADHD symptoms were assessed in childhood (8-12 years; M = 10.50) and followed up 5-6 years later in adolescence (13-18 years; M = 16.15). Path models tested the direct effects of childhood ADHD symptoms, supportive parent reactions, and non-supportive parent reactions on adolescent peer problems (friendship quality, deviant peer affiliation, peer aggression) and the indirect effects via adolescent emotion dysregulation. Emotion dysregulation mediated the effects of greater ADHD symptoms and of less parent supportive reactions on adolescent peer problems; parent reactions also independently predicted specific adolescent peer problems. Even for youth with clinical elevations in ADHD symptoms, parent reactions to children's negative emotions may be important in understanding adolescent emotion dysregulation and peer problems.

In-person victimization, cyber victimization, and polyvictimization in relation to internalizing symptoms and self-esteem in adolescents with attention-deficit/hyperactivity disorder.

BACKGROUND: There is mixed evidence for whether in-person victimization and cyber victimization are differentially linked to internalizing symptoms and self-esteem among adolescents with attention-deficit/hyperactivity disorder (ADHD). The goals of the present study were to (1) evaluate in-person victimization and cyber victimization in relation to internalizing symptoms (i.e., anxiety and depression) and self-esteem and (2) examine differences in internalizing symptoms and self-esteem between in-person victimization, cyber victimization, and polyvictimization (i.e., both in-person victimization and cyber victimization). METHODS: Participants were 78 adolescents (ages 13-17 years) diagnosed with ADHD who completed ratings of in-person victimization, cyber victimization, anxiety, depression, and self-esteem. Parents completed ratings of their adolescent's anxiety and depression. RESULTS: Adolescents with ADHD reported experiencing higher rates of in-person victimization (64%) than cyber victimization (23%) in the last 30 days. In addition, 22% reported that they experienced polyvictimization. In-person victimization was associated with higher adolescent-reported anxiety symptoms, whereas cyber victimization was associated with higher parent-reported depressive symptoms; both were associated with lower adolescent-reported self-esteem. Adolescents who reported polyvictimization reported the highest anxiety and depressive symptoms and the lowest self-esteem. CONCLUSIONS: Approximately one quarter of adolescents with ADHD report experiencing polyvictimization in the past month. Findings indicate that in-person victimization and cyber victimization are each uniquely associated with lower self-esteem and differentially associated with co-occurring internalizing symptoms among adolescents with ADHD. Polyvictimization is especially linked to higher internalizing symptoms and lower self-esteem. Longitudinal studies are needed to better understand the directionality of these associations.

A latent profile analysis of borderline personality features and externalizing problems in youth.

OBJECTIVE: This study investigated the co-occurrence of borderline personality disorder (BPD), attention-deficit/hyperactivity disorder (ADHD), and oppositional defiant disorder (ODD) features in elementary-aged youth. METHOD: Latent profile analysis characterized subgroups of youth based on the presence of BPD, ADHD, and ODD features, and subgroups were compared on academic, social, and emotional impairment. RESULTS: Seven subgroups were identified, including subgroups with slight, subclinical, clinical, and severe levels of co-occurring BPD, ADHD, and ODD features, and a subgroup of youth with no elevations in these symptom domains. Subgroups of youth with only clinical elevations in ADHD and only clinical levels in BPD features were also identified. Groups differed on level and type of impairment. CONCLUSION: Youth with ADHD and ODD represent a high-risk group likely to also show early prodromal clinical elevations in BPD. Future work is needed to examine the longitudinal outcomes of these subgroups to inform prevention and treatment.

Physiological Correlates of Sluggish Cognitive Tempo in Children: Examining Autonomic Nervous System Reactivity during Social and Cognitive Stressor Tasks.

It is important to establish correlates of sluggish cognitive tempo (SCT) across units of analysis and to better understand how SCT may be conceptualized in models of psychopathology. The current study examined SCT symptoms in relation to automatic nervous system reactivity during social and cognitive stressor tasks. Participants were 61 children ages 8-12 years with a full range of attention-deficit/hyperactivity disorder (ADHD) symptom severity. Parents provided ratings of SCT and parents and teachers completed measures that were used to create composite indices of ADHD symptoms. Children were administered standardized peer rejection and impossible puzzle tasks, during which their respiratory sinus arrhythmia (RSA) and skin conductance level (SCL) reactivity were recorded. Regression analyses indicated that SCT symptoms were unassociated with RSA reactivity to either task. Greater SCT symptoms were significantly associated with greater SCL reactivity to peer rejection. Greater SCT symptoms were not significantly associated with SCL reactivity to the impossible puzzle task. The pattern of findings was unchanged in sensitivity analyses that controlled for ADHD symptoms, internalizing symptoms, medication status, or sex. This study provides the first evidence that SCT symptoms are associated with sympathetic nervous system reactivity. These findings suggest that SCT symptoms may be associated with greater behavioral inhibition system activation, and reactivity may be especially pronounced in social challenges.

Parent Emotion Socialization and Child Emotional Vulnerability as Predictors of Borderline Personality Features.

Although parent emotion socialization and child temperament are theorized to interact in the prediction of borderline personality disorder (BPD) features, few studies have directly examined these relationships. The present study examined whether parental emotion socialization interacted with behavioral ratings and physiological indicators of emotional vulnerability in the prediction of BPD features among preadolescent children. Participants were 125 children (10-12 years; 55% female) and their parents recruited from the community. Parents and children reported on children's BPD features and parents completed a measure of supportive and non-supportive emotion socialization. Children's emotional vulnerability was assessed based on parent-rated negativity/lability and emotion regulation skills and children's respiratory sinus arrhythmia (RSA) and skin conductance level (SCL) reactivity to a social stressor. Several significant interactions of parent supportive reactions, non-supportive reactions, and child emotional reactivity emerged. Children were lowest in BPD features when parents were high in supportive reactions and/or low in non-supportive reactions and the child was low in emotional vulnerability (e.g., low negativity/lability, good emotion regulation skills, or low SCL reactivity to stress). These findings suggest that specific emotion socialization factors in interaction with children's emotional reactivity may predict risk for BPD features in preadolescence. Future research is needed to replicate these findings and examine whether this interaction prospectively predicts trajectories of BPD features.

Emotional Underarousal and Overarousal and Engagement in Relational Aggression: Interactions between Relational Victimization, Physiological Reactivity, and Emotional Sensitivity.

The present study examined if overarousal (i.e., dysregulation and high emotional sensitivity) and underarousal (i.e., fearlessness and emotional insensitivity) to peer stress, reflected in physiological reactivity and subjective emotional sensitivity, exacerbated risk for relational aggression in relationally victimized children. Participants were a community sample of 125 children (10-12 years, M = 11.34 years, SD = 0.89; 45% female). Teachers provided ratings of children's relational victimization and relational aggression. Children's physiological reactivity was assessed based on skin conductance level (SCL) reactivity and respiratory sinus arrhythmia (RSA) reactivity to a standardized peer rejection task. Children's subjective emotional sensitivity was assessed using self-reported ratings of distress to hypothetical relational provocation vignettes. Results indicated that relational victimization was significantly associated with relational aggression only for children with high SCL reactivity and high emotional sensitivity (i.e., physiological and subjective overarousal) and for children with low SCL reactivity and low emotional sensitivity (i.e., physiological and subjective underarousal); relational victimization did not predict relational aggression among children with high SCL reactivity but low emotional sensitivity or among children with low SCL reactivity but high emotional sensitivity. Relational victimization was also marginally more strongly associated with relational aggression for children displaying RSA augmentation. Results suggest emotional overarousal and underarousal may both serve as vulnerabilities for relational aggression among relationally victimized youth, and underscore the importance of including physiological and subjective indices of emotional reactivity in studies of aggression. Implications for theory and intervention are discussed.

Borderline Personality Features Mediate the Association Between ADHD, ODD, and Relational and Physical Aggression in Girls.

OBJECTIVE: This study investigates borderline personality features (BPF) as a mediator of the association between ADHD and ODD symptoms and aggression in girls. METHOD: Parents of 118 girls ( Mage = 11.40 years old) with and without ADHD completed ratings of ADHD and ODD severity, and parents and youth provided ratings of physical and relational aggression. RESULTS: ADHD, ODD, and their subfactors were significantly correlated with BPF, and these variables were associated with aggression measures. BPF fully mediated the association between total ODD symptom severity and relational and physical aggression by parent and youth report. At the subfactor level, BPF fully mediated the association between hyperactivity/impulsivity and oppositional behavior and physical and relational aggression. CONCLUSION: These findings add to a growing literature showing the relevance of BPF as a risk factor for poor social functioning in youth and point to the importance of continued work examining BPF among girls with ADHD and ODD.

Experiences of physical and relational victimization in children with ADHD: The role of social problems and aggression.

The social risk factors for physical and relational peer victimization were examined within a mixed-gender sample of children with and without attention-deficit/hyperactivity disorder (ADHD). Participants were 124 children (ages 8-12 years; 48% boys), with 47% exhibiting sub-clinical or clinical elevations in ADHD symptoms. ADHD and oppositional defiant disorder (ODD) symptom counts were assessed based on parent- and teacher-reports; parents rated children's social problems and teachers rated children's use of physical and relational aggression and experiences of physical and relational victimization. A multiple mediator model was used to test whether there were indirect effects of ADHD or ODD symptoms on physical and relational victimization through social problems, physical aggression, or relational aggression. At the bivariate level, ADHD and ODD symptoms were both significantly associated with higher rates of physical and relational victimization. In the mediational model, there were significant indirect effects of ADHD symptoms on relational victimization via social problems, of ODD on relational victimization via relational aggression, and of ODD symptoms on physical victimization via physical aggression. Results suggest that there are distinct risk factors implicated in the physical and relational victimization of youth with ADHD and that the co-occurrence of ODD symptoms is important to assess. Clinical implications for addressing victimization in children with ADHD are discussed.

Social Costs for Wannabes: Moderating Effects of Popularity and Gender on the Links between Popularity Goals and Negative Peer Experiences.

Youth in early adolescence are highly concerned with being popular in the peer group, but the desire to be popular can have maladaptive consequences for individuals. In fact, qualitative work suggests that youth with high popularity goals who are nonetheless unpopular have negative experiences with their peers. However, little quantitative work has examined this possibility. The purpose of the current study was to examine if popularity goals were linked with physical (e.g., being hit) and relational (e.g., being excluded) victimization and peer rejection, particularly for individuals who strived for popularity but were viewed by their peers as unpopular. Late elementary and early middle school participants (N = 205; 54% female) completed self-reports of popularity goals and peer nominations of popularity and peer rejection. Teachers reported on students' experiences of relational and physical victimization. Peer nominated popularity and gender were moderators of the association between popularity goals and negative peer experiences. Consistent with hypotheses, girls who were unpopular but wanted to be popular were more likely to experience peer rejection and relational victimization. Unexpectedly, boys who were unpopular but did not desire to be popular were more likely to be rejected and relationally victimized. The findings suggest that intervention and prevention programs may benefit from addressing the social status goals of low status youth in a gender-specific manner.

Longitudinal Associations of Parental Emotion Socialization and Children's Emotion Regulation: The Moderating Role of ADHD Symptomatology.

Theory and research suggest that parents' reactions to children's emotions play a critical role in teaching children effective emotion regulation (ER) skills, but no studies have directly examined the role that parent emotion socialization plays in the development of ER in children with ADHD. Gaining insight into the causes of impaired ER, particularly in youth with ADHD who are known to have poor ER, has important theoretical and translational significance. The present study is the first to longitudinally examine whether emotion socialization predicts later physiological and adult-reported measures of ER in children with and without ADHD. It also sought to determine if these relations are moderated by ADHD symptoms. Participants were 61 children (31 girls, 30 boys; M = 10.67 years, SD = 1.28) with and without clinically significant ADHD symptoms. At Time 1, parent reports of emotion socialization and parent- and teacher-report of child ADHD symptoms were collected. At Time 2, child ER measures were collected based on parent- and teacher-report and physiological reactivity during an impossible puzzle and a social rejection task. Physiological measures included respiratory sinus arrhythmia and skin conductance level (SCL). Supportive parenting practices were associated with better parent-rated emotion regulation skills for all children and greater SCL reactivity for children with high ADHD symptoms. Non-supportive parenting reactions were associated with greater adult-rated emotional lability for children with high ADHD symptoms. Results highlight the importance of considering multiple aspects of ER, including physiological manifestations. Findings suggest that parents' use of adaptive emotion socialization practices may serve as a protective factor for children's ER development and may be particularly critical for youth with ADHD. Our findings support the use of interventions addressing parent emotion socialization to help foster better ER in children.

Parent emotion socialization and pre-adolescent's social and emotional adjustment: Moderating effects of autonomic nervous system reactivity.

This study examined whether measures of children's autonomic nervous system (ANS) reactivity to social stress moderated the effect of parent emotion socialization on children's social and emotional adjustment. Sixty-one children (9-13 years) completed a peer rejection task while their respiratory sinus arrhythmia reactivity (RSA-R) and skin conductance level reactivity (SCL-R) were assessed. Parents' report of supportive and non-supportive reactions to their child's negative emotions served as measures of emotion socialization. Measures of children's social and emotional adjustment included: teacher-rated peer rejection, aggression, and prosocial behavior and parent-rated aggressive/dysregulated behavior and emotion regulation skills. Measures of children's ANS reactivity moderated the effect of parent emotion socialization on children's adjustment. Supportive responses were more protective for children evidencing RSA augmentation whereas non-supportive responses were more detrimental for children evidencing low SCL-R. Thus children's ANS reactivity during social stress may represent a biological vulnerability that influences sensitivity to parent emotion socialization.

Peer victimization and changes in physical and relational aggression: The moderating role of executive functioning abilities.

This study is the first to examine whether executive functioning (EF) abilities moderate longitudinal associations between peer victimization and engagement in physically and relationally aggressive behavior. Participants were 61 children (9-13 years, M = 10.68, SD = 1.28; 48% male) drawn from a partially clinical sample who were assessed at two time points, approximately 12 months apart. At time 1, children were administered a battery of EF tests; adult reports of children's relational and physical victimization and use of relational and physical aggression were collected. At time 2, adult-reported aggression was re-collected. Regression analyses tested whether EF ability moderated the association between peer victimization and increased engagement in aggression. Form-specific (e.g., physical victimization predicting physical aggression) and cross-form (e.g., physical victimization predicting relational aggression) models were tested. EF moderated the association between physical victimization and increases in physical aggression over time and between relational victimization and increases in relational aggression over time. Physical victimization predicted increases in physical aggression only among children with poor EF. However, relational victimization predicted increases in relational aggression for children with good EF skills but decreases in relational aggression for children with poor EF skills. Interaction effects for cross-form models were not significant. Results suggest that there are distinct risk factors implicated in children's engagement in physical and relational aggression. Established cognitive vulnerability models for engagement in physical aggression should not be assumed to apply to engagement in relational aggression.

The Nature of Social Positive Illusory Bias: Reflection of Social Impairment, Self-Protective Motivation, or Poor Executive Functioning?

The present study examined if a social positive illusory bias (PIB) is: a) simply a reflection of low adult-rated social acceptance, b) evident when children's perceived social acceptance is measured implicitly, and c) directly relates to impaired executive functioning (EF). Participants were 8 to 12 year-old children (N = 120; 55 boys and 65 girls) with and without clinical symptoms of attention-deficit/hyperactivity disorder (ADHD). Ratings of the child's social acceptance were obtained from an adult and the child using the Self-Perception Profile for Children (Harter 2012); social bias was calculated as the discrepancy between standardized adult- and child-ratings. Children also completed a reaction time measure to assess implicit perceptions of social acceptance and a battery of EF measures. Depression symptoms were assessed based on parent report. Group comparisons were focused on the presence or absence of social PIB rather than on ADHD diagnostic status. Relative to non-PIB children, those with a social PIB were significantly higher in self-reported social acceptance, but significantly lower on adult reports and implicit perceived social acceptance; these children also were significantly higher in depression symptoms. EF impairments were indirectly related to social PIB as a function of adult-rated social impairment. Results suggest that social PIB is not merely a reflection of low adult-ratings of social acceptance. However, the high explicit self-reports of social acceptance in children with a social PIB are not fully consistent with their implicit self-perceptions of social acceptance. Results are discussed in light of the self-protective and cognitive deficits hypotheses regarding the nature of social PIB.

Parasympathetic Nervous System Reactivity Moderates Associations Between Children's Executive Functioning and Social and Academic Competence.

This study examined whether children with poor executive functioning (EF) evidenced less social and academic impairments, compared to other children, if they demonstrated adaptive parasympathetic nervous system (PNS) regulation during experiences of failure. Participants with and without clinical elevations in ADHD symptoms (N = 61; 9-13 years; 48% male; 85% Caucasian) were administered a battery of EF tests and completed manipulated social and cognitive failure tasks. While participants completed failure tasks, respiratory sinus arrhythmia reactivity (RSA-R) was measured as an indicator of PNS reactivity. Children's social and academic impairment in daily life was assessed based on parent and teacher report on multiple measures. RSA-R during social failure moderated the association between poor EF and adult-rated social impairment and RSA-R during cognitive failure moderated the association between poor EF and adult-rated academic impairment. Simple effects indicated that poor EF was significantly associated with impairment when children demonstrated RSA activation (increased PNS activity) but not when children demonstrated RSA withdrawal (decreases in PNS activity). Domain-crossed models (e.g., reactivity to social failure predicting academic impairment) were not significant, suggesting that the moderating effect of RSA-R was domain-specific. Results suggest that not all children with poor EF evidence social and academic impairment; RSA withdrawal during experiences of failure may be protective specifically for children with impaired EF skills.

Are Elevations in ADHD Symptoms Associated with Physiological Reactivity and Emotion Dysregulation in Children?

The present study examined whether children with elevated attention-deficit/hyperactivity disorder (ADHD) symptoms display a unique pattern of emotion dysregulation as indexed by both parent report and physiological reactivity during experiences of failure. A sample of 61 children (9 to 13 years; M = 11.62, SD = 1.29; 48 % male) with and without clinical elevations in ADHD symptoms participated. Parent and teacher report of ADHD and oppositional defiant disorder (ODD) symptoms and parent report of internalizing problems were collected. Parents also provided ratings of children's emotional negativity/lability and emotion regulation. Children's physiological reactivity, based on changes in respiratory sinus arrhythmia (RSA) and skin conductance level (SCL), were assessed while they completed a manipulated social rejection task and impossible puzzle task. Regression analyses indicated that ADHD symptoms were associated with higher parent-rated emotional negativity/lability and with blunted RSA withdrawal in response to social rejection; these effects were not accounted for by co-occurring ODD symptoms or internalizing problems. ODD symptoms also were uniquely associated with parent ratings of poor emotion regulation. Internalizing problems were uniquely associated with emotional negativity/lability, poor emotion regulation, and increased SCL activity in response to social rejection. Results suggest that there may be a pattern of emotion dysregulation that is specific to ADHD symptomatology. The importance of contextual factors when examining physiological reactivity to stress in youth with ADHD is discussed.

Executive Functioning and Engagement in Physical and Relational Aggression among Children with ADHD.

Although evidence suggests that executive functioning (EF) impairments are implicated in physically aggressive behavior (e.g., hitting) these cognitive impairments have rarely been examined with regard to relational aggression (e.g., gossip, systematic exclusion). Studies also have not examined if EF impairments underlie the expression of aggression in children with attention-deficit/hyperactivity disorder (ADHD) and if child gender moderates risk. Children with and without clinical elevations in ADHD symptoms (N = 124; ages 8-12 years; 48 % male) completed a battery of EF tests. Parent and teacher report of ADHD and oppositional defiant disorder (ODD) symptoms and teacher report of engagement in physical and relational aggression were collected. Models tested the unique association of EF abilities with physical and relational aggression and the indirect effect through the expression of ADHD or ODD behaviors; child gender was also tested as a moderator. EF impairment was uniquely associated with physical aggression, but better EF ability was associated with relational aggression. For boys, poor EF also was indirectly associated with greater physical aggression through the expression of ADHD behaviors. However, ADHD symptoms were unrelated to relational aggression. ODD symptoms also predicted physical aggression for boys but relational aggression for girls. Results suggest that there are multiple and distinct factors associated with engagement in physical and relational aggression and that better EF may actually promote relational aggression. Established models of physical aggression should not be assumed to map on to explanations of relational aggression.