Targeting Peer Contagion Dynamics in Children with ADHD: Effects from a Two-Site Randomized Controlled Trial.

OBJECTIVE: Parental Friendship Coaching (PFC) teaches parents to coach their children in friendship skills. This paper examines whether PFC fosters positive peer contagion processes (i.e. dyadic mutuality) and reduces negative peer contagion processes (i.e. coercive joining) within the friendships of children with attention-deficit/hyperactivity disorder (ADHD). METHOD: Participants were 134 families of children with ADHD and peer problems (age 6-11 years; 69% male; 72% white) at two Canadian sites, randomized to PFC or CARE (an active comparison intervention). Children were observed in the lab at baseline, post-treatment, and at 8-month follow-up during cooperation and competition tasks with a real-life friend. Amount and reciprocity of dyadic mutuality indicators (i.e. positive affect and positive behaviors) and coercive joining indicators (i.e. aggressive, controlling, and rule-breaking behaviors) between friends were coded. RESULTS: Across treatment conditions, children showed an increase in the amount of dyadic mutuality during cooperation and a decrease in the amount of coercive joining during competition over time. Relative to CARE, PFC induced a reduced amount of coercive joining behaviors during cooperation at post-treatment and follow-up. However, PFC led to decreases in the reciprocity of positive affect during cooperation at post-treatment and to increases in the reciprocity of coercive joining during competition at follow-up relative to CARE. Moderation analyses suggest PFC was associated with better outcomes for children with externalizing comorbidity, and for those with a stable or a best friend. CONCLUSIONS: Findings highlight the importance of transactional processes, contextual differences, externalizing comorbidities, and friendship status when assessing the efficacy of PFC.

Social Media Posts from Friends during Late Adolescence as Predictors of Young Adult Physical Health.

Although an increasing body of literature has linked social experiences to physical health, research has yet to consider how specific aspects of social experiences taking place on social media during late adolescence may predict future physical health outcomes. This study thus examined qualities of social media posts received from peers at age 21 as predictors of participants' physical health (e.g., Interleukin-6 (inflammation), sleep problems, problems with physical functioning, and BMI) at age 28. Participants included 138 youth (59 men and 79 women); 57% of participants identified as White, 30% as Black/African American, and 13% as from other or mixed racial/ethnic groups. Posts from friends and participants at age 21 characterized by social ties predicted lower levels of future physical health problems, whereas socially inappropriate "faux pas" posts that deviated from peer norms by friends predicted higher levels of physical health problems at age 28. These associations were found after accounting for factors typically associated with physical health outcomes, including participants' baseline social competence, internalizing and externalizing symptoms, alcohol use, observed physical attractiveness, and history of prior hospitalizations. The results of this study suggest the importance of both achieving social integration with peers online and adhering to peer norms in the online domain as key predictors of future physical health.

A Multi-Method Examination of Peer Functioning in Children with and without Cognitive Disengagement Syndrome.

OBJECTIVE: Cognitive disengagement syndrome (CDS) includes excessive daydreaming, mental confusion, and hypoactive behaviors that are distinct from attention-deficit/hyperactivity disorder inattentive (ADHD-IN) symptoms. A growing number of studies indicate that CDS symptoms may be associated with ratings of social withdrawal. However, it is important to examine this association in children specifically recruited for the presence or absence of CDS, and to incorporate multiple methods including direct observations of peer interactions. The current study builds on previous research by recruiting children with and without clinically elevated CDS symptoms and using a multi-method, multi-informant design including recess observations and parent, teacher, and child rating scales. METHOD: Participants were 207 children in grades 2-5 (63.3% male), including 103 with CDS and 104 without CDS, closely matched on grade and sex. RESULTS: Controlling for family income, medication status, internalizing symptoms, and ADHD-IN severity, children with CDS were observed during recess to spend more time alone or engaging in parallel play, as well as less time involved in direct social interactions, than children without CDS. Children with CDS were also rated by teachers as being more asocial, shy, and socially disinterested than children without CDS. Although children with and without CDS did not differ on parent- or self-report ratings of shyness or social disinterest, children with CDS rated themselves as lonelier than children without CDS. CONCLUSIONS: Findings indicate that children with CDS have a distinct profile of peer functioning and point to the potential importance of targeting withdrawal in interventions for youth with elevated CDS symptoms.

Exploring Intervention Sustainment and Intervention Spread Following a Randomized Clinical Trial of the MOSAIC Program.

The randomized trial of the Making Socially Accepting Inclusive Classrooms (MOSAIC) program included intensive coaching from research staff to support teachers' implementation of MOSAIC strategies and resulted in positive student outcomes (Mikami et al., J. Clin. Child Adolesc. Psychol. 51(6):1039-1052, 2022). However, these intensive procedures are costly (in time, money, and resources) and serve as barriers to intervention adoption under typical school conditions. In this study, we explored the extent to which MOSAIC-trained teachers could sustain practices under typical practice conditions (sustainment), the extent to which teachers who did not participate in the trial could adopt the practices under typical practice conditions (spread), and the extent to which strategy use in the follow-up year was associated with participation in MOSAIC-focused professional learning communities (PLCs). Participants were 30 elementary school teachers, including (a) 13 teachers who received intensive coaching on MOSAIC practices during the previous year (MOSAIC group), and (b) seven teachers who participated in the trial in the control condition, plus 10 new teachers interested in MOSAIC (new-to-MOSAIC group). We assessed MOSAIC strategy use over the school year via monthly observations and biweekly teacher self-report surveys. Observation data revealed high sustainment in the MOSAIC group, with teachers showing less than 20% decline in the use of most strategies between the two years of participation. New-to-MOSAIC teachers implemented some core MOSAIC strategies, although not to the extent as those in the MOSAIC group. Higher strategy use was modestly associated with PLC attendance. We discuss implications for encouraging sustainment and intervention spread after initial, intensive supports are withdrawn. Supplementary Information: The online version contains supplementary material available at 10.1007/s12310-022-09555-w.

Contributions of Friends' Problem Behaviors to Friendship Quality in a Sample of Children with ADHD.

OBJECTIVE: It is often assumed that children with attention-deficit/hyperactivity disorder (ADHD) experience friendship difficulties because of their own problem behaviors. However, friendships are dyadic relationships between two children. This study sought to understand the incremental contributions of friends' problem behaviors to dyadic friendship quality in a clinically diagnosed sample of children with ADHD. METHOD: One hundred and sixty-five dyads consisting of a target child with ADHD and social impairment (age 6-11; 67% male; 72% white) and a reciprocated, real-life friend were recruited. Parents and teachers rated the ADHD symptom severity, externalizing problems, and callous-unemotional (CU) traits of target children and friends. Friendship quality in the dyad was measured with: (a) questionnaires independently completed by target children, their parents, their friends, and the parents of their friends; and (b) observations of child-friend interactions. RESULTS: The severity of ADHD symptoms and externalizing problems (but not CU traits) in target children was associated with more negative friendship quality reported on questionnaires. Adjusting for the corresponding problem behavior in target children, each type of friends' problem behaviors incrementally predicted less positive friendship quality (on questionnaires). Friends' ADHD symptoms and CU traits also incrementally predicted more negative friendship quality (on questionnaires and observations). CONCLUSIONS: Considering problem behaviors in friends of children with ADHD (in addition to those in children with ADHD) may be important for identifying dyads at risk for lower quality friendships. These findings could possibly lead to new directions when designing and evaluating treatments targeting the friendship problems of children with ADHD.

Associations between cross-racial friendships and children's social and academic adjustment in racially diverse classrooms.

This study examined bidirectional associations between cross-racial friendships and children's social and academic adjustment. Participants were 583 elementary school-age children in western Canada, or the midwestern United States (4-10 years; 279 girls; 143 Asian, 88 Black, 65 Hispanic or Latinx, 171 White, 116 mixed). Children's adjustment (social preference, academic enablers, academic performance) and friendship nominations (reciprocated, received, given) were measured in fall and spring over one school year from 2017 to 2018, or from 2018 to 2019. Regarding reciprocated nominations, fall adjustment positively predicted spring reciprocated cross-racial friendships, but not vice-versa. For received nominations, academic enablers and received cross-racial friendship nominations were positively and bidirectionally related to one another. Fall same-racial friendship nominations positively predicted spring academic performance and social preference. Effect sizes were small.

Peer contagion dynamics in the friendships of children with ADHD.

BACKGROUND: Friendships in middle childhood carry high developmental significance. The majority of children with attention-deficit/hyperactivity disorder (ADHD) have few friendships, unstable friendships, or poor relationship quality in any friendships they have. The current study used time-window sequential analysis to map the dynamics within the friendships of children with ADHD, specifically the peer contagion processes of dyadic mutuality and coercive joining. METHODS: Participants were 164 dyads consisting of a target child with ADHD and peer problems (age 6-11 years; 68% male; and 73% white) and a reciprocated friend. Dyads were observed in the lab during a cooperative task eliciting verbal negotiation processes to decide how to share a limited resource and during a fast-paced, engrossing, and competitive task. Both tasks were designed to mirror the real-world interactions of friends. Sequences of dyadic mutuality (i.e., reciprocity of positive affect and positive behaviors) and coercive joining (i.e., reciprocity of aggressive, controlling, and rule-breaking behaviors) between target children and friends were coded. RESULTS: Regarding dyadic mutuality, target children reciprocated their friends' positive affect in both tasks. They also reciprocated their friends' positive behaviors but only in the cooperative task. In contrast, they only reciprocated their friends' coercive joining behaviors in the competitive task. Medium to large reciprocity effects was found for 36%-53% (dyadic mutuality) and 38%-55% (coercive joining) of target children. CONCLUSIONS: These results extend findings of peer contagion processes to the friendships of children with ADHD and suggest that contagion may vary according to interaction context (i.e., competition vs. cooperation). Understanding the spread of peer contagion may illuminate how children with ADHD and their friends influence each other's adjustment over time and may guide friendship-focused psychosocial interventions for this population.

Promoting Classroom Social and Academic Functioning among Children at Risk for ADHD: The MOSAIC Program.

OBJECTIVE: Social and academic functioning are linked in elementary school, and both are frequently impaired in children with elevated symptoms of attention-deficit/hyperactivity disorder (ADHD). This study evaluated the Making Socially Accepting Inclusive Classrooms (MOSAIC) program, a classroom intervention to support children's social and academic functioning, especially for children at risk for ADHD. Teachers delivered MOSAIC practices to the whole class and applied some strategies more frequently to target children selected for elevated ADHD symptoms and peer impairment. METHOD: Participants were 34 general education teachers (grades K-5) and 558 children in their classrooms, randomized to MOSAIC or to a typical practice control group for one academic year. In the fall and spring, we assessed (a) peers' sociometric judgments of children, (b) children's self-report of supportive relationships with teachers and peers, and (c) teachers' report of children's social and academic competencies and impairments. RESULTS: Regarding whole class effects, relative to control group children, children in MOSAIC classrooms (target and non-target children) were rated by teachers in spring as having better competencies and lower impairment, after controlling for fall functioning. There were no main effects of MOSAIC on peer sociometrics or child perceptions of supportive relationships. Target status moderated some effects such that, in spring, target children in MOSAIC perceived greater support from their teachers but received poorer sociometrics than did target children in control classrooms. CONCLUSIONS: We discuss the difficulty in changing peers' perceptions of children with ADHD symptoms, even in the presence of improvements in other aspects of social and academic functioning.

Effects of the Parental Friendship Coaching Intervention on Parental Emotion Socialization of Children with ADHD.

Parental emotion-related socialization behaviors shape children's socioemotional functioning and appear important for children with attention-deficit/hyperactivity disorder (ADHD). The Parental Friendship Coaching (PFC) intervention teaches parents to coach their children with ADHD in friendship skills, which includes managing emotions. We examined whether PFC, relative to psychoeducation and social support (Coping with ADHD through Relationships and Education; CARE), improved parental emotion-related socialization behaviors, child affect with a friend, and child social behaviors related to emotional difficulties. Participants were 172 families of children with ADHD (ages 6-11, 30% female), randomized to PFC or CARE. At baseline, children and their real-life friends interacted and their affect was coded. Parents coached their child in friendship skills before and after the child-friend interaction, and parents' praise, warmth, criticism, and discussion of emotion-related friendship strategies were coded. Parents and teachers reported children's withdrawn/depressed and aggressive behaviors. Results suggested that PFC (relative to CARE) led to parents providing more emotion strategies and praise at post-treatment and follow-up, and more warmth at follow-up, and to children showing less withdrawn/depressed behavior at follow-up. For bidirectional relationships from baseline to post-treatment, more parental warmth was associated with less child withdrawn/depressed behavior, and more parental criticism with more child aggression. More child withdrawn/depressed behavior and positive affect at post-treatment were associated with more parental criticism at follow-up. After corrections for multiple comparisons, only PFC effects on praise and emotion strategies at post-treatment, and praise and withdrawn/depressed behavior at follow-up, maintained. Implications are discussed for supporting socioemotional functioning in children with ADHD.

An Individual Participant Data Meta-analysis: Behavioral Treatments for Children and Adolescents With Attention-Deficit/Hyperactivity Disorder.

OBJECTIVE: Behavioral interventions are well established treatments for children with attention-deficit/hyperactivity disorder (ADHD). However, insight into moderators of treatment outcome is limited. METHOD: We conducted an individual participant data meta-analysis (IPDMA), including data of randomized controlled behavioral intervention trials for individuals with ADHD <18 years of age. Outcomes were symptoms of ADHD, oppositional defiant disorder (ODD), and conduct disorder (CD) and impairment. Moderators investigated were symptoms and impairment severity, medication use, age, IQ, sex, socioeconomic status, and single parenthood. RESULTS: For raters most proximal to treatment, small- to medium-sized effects of behavioral interventions were found for symptoms of ADHD, inattention, hyperactivity/impulsivity (HI), ODD and CD, and impairment. Blinded outcomes were available only for small preschool subsamples and limited measures. CD symptoms and/or diagnosis moderated outcome on ADHD, HI, ODD, and CD symptoms. Single parenthood moderated ODD outcome, and ADHD severity moderated impairment outcome. Higher baseline CD or ADHD symptoms, a CD diagnosis, and single parenthood were related to worsening of symptoms in the untreated but not in the treated group, indicating a protective rather than an ameliorative effect of behavioral interventions for these children. CONCLUSION: Behavioral treatments are effective for reducing ADHD symptoms, behavioral problems, and impairment as reported by raters most proximal to treatment. Those who have severe CD or ADHD symptoms, a CD diagnosis, or are single parents should be prioritized for treatment, as they may evidence worsening of symptoms in the absence of intervention.

Integrating Research-Supported Coaching Practices Into Secondary Teachers' Team Meetings: Early Indications of Potential to Impact Collaborations, Classroom Interactions, and Student Engagement.

The My Teaching Partner-Secondary (MTPS) program demonstrated improvements in classroom interactions and student outcomes in secondary schools using one-on-one coaching between study staff and teachers. Despite promising results, the time, cost, and oversight from a university research team may pose barriers to adoption of coaching programs like MTPS at scale. The My Teaching Team (MTT) project sought to translate key ingredients from MTPS into existing professional development contexts that are already built into many middle and high school educators' weekly schedules: co-planning or professional learning community meetings. Six teams of secondary teachers (N = 30 teachers) participated in a pilot test of the usability of MTT materials across 5 months in one school year. Three teams elected to use MTT materials, and three elected to be a comparison group who continued their typical practices. Teams adopting MTT materials were observed to do so with good implementation integrity, and reported satisfaction with the intervention. Compared to typical practice teams, those using MTT were observed to spend more meeting time discussing teaching practice and less time discussing logistics/mechanics, and engaged in more video sharing and feedback to team members in the MTT sessions that explicitly encouraged this. The number of MTT meetings completed by a team, as well as spending more time discussing teaching practices and video sharing (but not feedback provided) during team meetings, predicted students' self-reports of greater engagement and observations of higher levels of emotional support provided in the classroom. Implications for translating empirically supported interventions from the lab to real-world school settings are discussed.

Children's ADHD Symptoms and Friendship Patterns across a School Year.

Symptoms of attention-deficit/hyperactivity disorder (ADHD) in elementary school-age children are associated with poor relationships with classroom peers, as indicated by poor social preference, low peer support, and peer victimization. Less is known about how friendship patterns relate to ADHD symptoms, or how friendships may buffer risk for negative peer experiences. Participants were 558 children in 34 classrooms (grades K-5). At the beginning (fall) and end (spring) of an academic year, children completed (a) sociometric interviews to index friendship patterns and social preference, and (b) self-report questionnaires about their support and victimization experiences from classmates. In fall, higher teacher-reported ADHD symptoms were associated with children having more classmates with no friendship ties (non-friends) and who the child nominated but did not receive a nomination in return (unreciprocated friends), and with having fewer classmates with mutual friendship ties (reciprocated friends) and who nominated the child but the child did not nominate in return (unchosen friends). Higher fall ADHD symptoms predicted more non-friend classmates, poorer social preference, and more victimization in the spring, after accounting for the same variables in fall. However, having many reciprocated friends (and to a lesser extent, many unchosen friends) in fall buffered against the trajectory between fall ADHD symptoms and poor peer functioning in spring. By contrast, having many unreciprocated friends in fall exacerbated the trajectory between fall ADHD symptoms and poor peer functioning in spring. Thus, elevated ADHD symptoms are associated with poorer friendship patterns, but reciprocated friendship may protect against negative classroom peer experiences over time.

The World Federation of ADHD International Consensus Statement: 208 Evidence-based conclusions about the disorder.

BACKGROUND: Misconceptions about ADHD stigmatize affected people, reduce credibility of providers, and prevent/delay treatment. To challenge misconceptions, we curated findings with strong evidence base. METHODS: We reviewed studies with more than 2000 participants or meta-analyses from five or more studies or 2000 or more participants. We excluded meta-analyses that did not assess publication bias, except for meta-analyses of prevalence. For network meta-analyses we required comparison adjusted funnel plots. We excluded treatment studies with waiting-list or treatment as usual controls. From this literature, we extracted evidence-based assertions about the disorder. RESULTS: We generated 208 empirically supported statements about ADHD. The status of the included statements as empirically supported is approved by 80 authors from 27 countries and 6 continents. The contents of the manuscript are endorsed by 366 people who have read this document and agree with its contents. CONCLUSIONS: Many findings in ADHD are supported by meta-analysis. These allow for firm statements about the nature, course, outcome causes, and treatments for disorders that are useful for reducing misconceptions and stigma.

Treatment of friendship problems in children with attention-deficit/hyperactivity disorder: Initial results from a randomized clinical trial.

OBJECTIVE: This study evaluated a novel intervention for friendship problems in children with attention-deficit/hyperactivity disorder (ADHD). Parental Friendship Coaching (PFC) teaches parents to coach their children in targeted friendship behaviors that are lacking in children with ADHD and that help children develop good quality friendships. METHOD: Participants were 172 families of children with ADHD and social impairment (ages 6-11; 29.7% female) at two Canadian sites, randomized to PFC or to an active comparison intervention (Coping with ADHD through Relationships and Education; CARE) to control for common therapy factors. Questionnaire and observational measures assessing primary outcomes of children's friendship quality and secondary outcomes of children's friendship behaviors were collected at baseline, posttreatment, and 8-month follow-up. RESULTS: Across both treatment conditions, children showed improvements in positive friendship quality and in friendship behaviors. Relative to CARE, PFC was associated with somewhat more positive and less negative friendship behaviors at posttreatment and follow-up, but no difference between conditions was found in friendship quality. However, moderation analyses suggested that PFC may contribute to better friendship quality among families who had previous psychosocial treatment, as well as children with comorbid externalizing disorders. CONCLUSIONS: Although PFC showed some efficacy for affecting children's friendship behaviors, these changes may not translate into friendship quality. Nevertheless, PFC may improve friendship quality for at-risk subgroups of children with ADHD. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Prediction of social behavior in autism spectrum disorders: Explicit versus implicit social cognition.

LAY ABSTRACT: Difficulties with social communication and interaction are a hallmark feature of autism spectrum disorder. These difficulties may be the result of problems with explicit social cognition (effortful and largely conscious processes) such as learning and recalling social norms or rules. Alternatively, social deficits may stem from problems with implicit social cognition (rapid and largely unconscious processes) such as the efficient integration of social information. The goal of this study was to determine how problems in explicit and implicit social cognition relate to social behavior in 34 youth with autism spectrum disorder. We measured aspects of implicit and explicit social cognition abilities in the laboratory using behavioral, cognitive, and brain (electrophysiological) measures. We then used those measures to predict "real-world" social behavior as reported by parents, clinicians, and independent observers. Results showed that overall better aspects of implicit and explicit social cognition predicted more competent social behavior. In addition, the ability to fluidly integrate social information (implicit social cognition) was more frequently related to competent social behavior that merely knowing what to do in social situations (explicit social cognition). These findings may help with the development of interventions focusing on improving social deficits.

A Multiple Indicators Multiple Causes (MIMIC) model of friendship quality and comorbidities in children with attention-deficit/hyperactivity disorder.

The unique objectives of the current investigation were: (a) to assess the fit of a multiinformant 2-factor measurement model of friendship quality in a clinical sample of children with attention-deficit/hyperactivity disorder (ADHD); and (b) to use a multiple indicators multiple causes approach to evaluate whether comorbid externalizing and internalizing disorders incrementally predict levels of positive and negative friendship quality. Our sample included 165 target children diagnosed with ADHD (33% girls; aged 6-11 years). Target children, their parents, their friends, and the parents of their friends independently completed a self-report measure of friendship quality about the reciprocated friendship between the target child and the friend. Results indicated that a multiinformant 2-factor measurement model with correlated positive friendship quality and negative friendship quality had good fit. The friendships of children with ADHD and a comorbid externalizing disorder were characterized by less positive friendship quality and more negative friendship quality than the friendships of children with ADHD and no externalizing disorder after controlling for the presence of a comorbid internalizing disorder. However, the presence of a comorbid internalizing disorder did not predict positive or negative friendship quality. These findings suggest that soliciting reports from parents in addition to children and friends, and measuring comorbid externalizing disorders, may be valuable evidence-based strategies when assessing friendship quality in ADHD populations. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Correlates of Loneliness in Children with Attention-Deficit/Hyperactivity Disorder: Comorbidities and Peer Problems.

Children with attention-deficit/hyperactivity disorder (ADHD) are well-documented to experience social-emotional difficulties; however, little is known about their loneliness-an aspect of social-emotional functioning. Using a cross-sectional design, we examined how loneliness relates to comorbid internalizing disorders, externalizing disorders, and peer problems in a sample of 213 children with ADHD. Children (66 girls, Mage = 8.58, SDage = 1.55) reported their loneliness. Comorbid internalizing and externalizing disorders were assessed via a multi-informant procedure. Proportion of classmates who accepted, rejected, and ignored the child, friendship quantity, and friendship quality were peer problem indicators. Results suggested that children with comorbid internalizing disorders, fewer friendships, or potentially more negative friendship quality, reported more loneliness. Gender appeared to moderate the association between peer rejection and loneliness, such that boys with peer rejection reported more loneliness than girls. Clinical implications include targeting loneliness as a social-emotional problem to assess and treat in children with ADHD.

Evaluation of a multi-component and multi-agent intervention to improve classroom social relationships among early elementary school-age children.

We present the preliminary evaluation of a comprehensive, multi-component and multi-agent 2-year classroom intervention to enhance children's relationships with their peers and teachers among early elementary school students in Spain. The intervention contained universal components directed to the whole class plus targeted components for children with peer problems. Using a quasi-experimental design, 229 children (in 10 classrooms) formed a comparison group whose teachers engaged in their typical practices, followed the next year by 214 children (in 9 classrooms) who received the intervention. Children completed a sociometric procedure, and reported their self-perceptions of peer functioning and their relationship quality with teachers at the beginning of 1st grade (pretest) and the end of 2nd grade (posttest; 93% retention). After statistical control of pretest functioning, by posttest those in the intervention group received fewer negative sociometric nominations, perceived themselves to receive fewer negative sociometric nominations and to have greater overall peer acceptance, and reported their teachers to have greater warmth and organization, compared to children in the comparison group. However, intervention group children also received fewer positive sociometric nominations (as well as perceived themselves to receive fewer positive nominations) than comparison group children. Target children, selected for being disliked by peers, received accentuated benefits from the intervention on the outcome variables of fewer negative nominations received and greater teacher warmth. Implications for practice are discussed.

Social functioning in youth with attention-deficit/hyperactivity disorder and autism spectrum disorder: transdiagnostic commonalities and differences.

Attention-Deficit/Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD) are both neurodevelopmental disorders originating in childhood with high associated impairments and public health significance. There has been growing recognition of the frequent co-occurrence, and potential interrelatedness, between ADHD and ASD without intellectual disability. In fact, the most recent (5th) edition of the DSM is the first to allow ADHD and ASD to be diagnosed in the same individual. The study of transdiagnostic features in ADHD and ASD is important for understanding, and treating, these commonly co-occurring disorders. Social impairment is central to the description and prognosis of both disorders, and many youth with some combination of ADHD and ASD present to clinics for social skills training interventions. However, the aspects of social functioning that are impaired may have both shared and distinct features between the two disorders, relating to some overlapping and some diverse etiologies of social problems in ADHD compared to ASD. These findings have implications for interventions to address social problems in youth with these conditions. We conclude with a discussion about areas for future research and novel intervention targets in youth with ADHD, ASD, and their comorbidity.

Online Social Interactions Predict Academic and Emotional Adjustment in the Transition to University.

We investigated the developmental implications of online social interactions among 590 youth transitioning to university. We observed friends' posts on participants' Facebook pages, and considered attributes of friends' posts used to indicate positive and negative relationship quality in face-to-face interactions. After statistical control of beginning-of-year functioning and participants' Facebook content, Facebook friends' deviant content posts (swearing; illegal/sexualized activities) predicted participants' lower grade point average, Facebook friends' posts indicating connection to participants predicted participants' lower psychopathology, and Facebook friends' verbal aggression posts predicted participants' lower institutional attachment, by the end of the year. Negative effects of friends' posts were strongest for participants who were disliked by peers face to face. The online context may uniquely influence youth adjustment in conjunction with face-to-face relationships.