Improvements in Negative Parenting Mediate Changes in Children's Autonomic Responding Following a Preschool Intervention for ADHD.

Abnormal patterns of sympathetic- and parasympathetic- linked cardiac activity and reactivity are observed among externalizing children, and mark deficiencies in central nervous system regulation of behavior and emotion. Although changes in these biomarkers have been observed following treatment, mechanisms remain unexplored. We used MEMORE-a new approach to analyzing intervening variable effects-to evaluate improvements in parenting as mediators of changes in SNS- and PNS-linked cardiac activity and reactivity among 99 preschoolers with attention-deficit hyperactivity disorder who were treated using an empirically supported intervention. Decreases in negative parenting (criticism, negative commands, physical intrusions) were associated with increases in resting RSA and PEP reactivity to incentives from pre- to post-intervention. Increases in positive parenting were not associated with changes in autonomic function. These findings suggest socially-induced plasticity in peripheral biomarkers of behavior and emotion regulation, and underscore the importance of reducing aversive interactions between parents and children when treating externalizing behavior.

Electrodermal responding predicts responses to, and may be altered by, preschool intervention for ADHD.

OBJECTIVES: To evaluate electrodermal activity (EDA) as a prospective biomarker of treatment response, to determine whether patterns of EDA are altered by treatment, and to assess oppositional defiant disorder (ODD) as a possible moderator of trajectories in EDA after an empirically supported behavioral intervention for attention-deficit hyperactivity disorder (ADHD) in preschool. METHOD: Nonspecific fluctuations (NSFs) in skin conductance, which index sympathetic nervous system activity, were assessed among 4-6 year old children with ADHD (n = 99) before they participated with their parents in 1 of 2 versions of the Incredible Years intervention. All were reassessed at posttreatment, and a subgroup (n = 49) were assessed again at 1-year follow-up. RESULTS: No difference in pretreatment NSFs was observed between ADHD participants and a group of normal control children (n = 41). Nevertheless, among those with ADHD, fewer NSFs at pretest predicted poorer treatment response on 4 of 7 externalizing outcomes. Furthermore, treatment was associated with increasing NSFs across time, but not for those who scored high on ODD at pretest. CONCLUSIONS: Low EDA appears to mark resistance to treatment among preschoolers with ADHD. Furthermore, although our study was not experimental, treatment was associated with longitudinal increases in EDA, which were not observed in a normal control group. This may suggest increased sensitivity to discipline, with positive implications for long term outcome. In contrast to treated participants as a whole, however, those who scored high on ODD at pretest exhibited reduced EDA over time. (PsycINFO Database Record

Improving therapist fidelity during implementation of evidence-based practices: Incredible years program.

OBJECTIVE: The aim of the study was to extend research on the potential benefits of adding ongoing feedback, coaching, and consultation to initial therapist training workshops to ensure fidelity of delivery of evidence-based practices, specifically for the Incredible Years parenting program. METHODS: A randomized controlled trial compared two models for training therapists to deliver the parenting program for children at high risk of developing conduct problems. Therapists (N=56) from ten community-based mental health service organizations in California were trained in either a three-day workshop model (N=25), based on active, experiential, self-reflective, principle-based learning, video modeling, and manuals, or an enhanced training model (N=31) that included all elements of the workshop model plus ongoing expert coaching, video review of and feedback on group sessions, and consultation for therapists and agency supervisors. RESULTS: Overall fidelity across both conditions was rated >3 on a 5-point scale in seven of eight domains measured. Therapists in the condition that received ongoing coaching and consultation were significantly stronger in four of the domains: practical support, collaboration, knowledge, and skill at mediating vignettes. CONCLUSIONS: Consultation and expert coaching for training therapists beyond the standard three-day training enhanced skills and therapists' adherence to the model.

Sympathetic- and parasympathetic-linked cardiac function and prediction of externalizing behavior, emotion regulation, and prosocial behavior among preschoolers treated for ADHD.

OBJECTIVE: To evaluate measures of cardiac activity and reactivity as prospective biomarkers of treatment response to an empirically supported behavioral intervention for attention-deficit/hyperactivity disorder (ADHD). METHOD: Cardiac preejection period (PEP), an index of sympathetic-linked cardiac activity, and respiratory sinus arrhythmia (RSA), an index of parasympathetic-linked cardiac activity, were assessed among 99 preschool children (ages 4-6 years) with ADHD both at rest and in response to behavioral challenge, before participants and their parents completed 1 of 2 versions of the Incredible Years parent and child interventions. RESULTS: Main effects of PEP activity and reactivity and of RSA activity and reactivity were found. Although samplewide improvements in behavior were observed at posttreatment, those who exhibited lengthened cardiac PEP at rest and reduced PEP reactivity to incentives scored higher on measures of conduct problems and aggression both before and after treatment. In contrast, children who exhibited lower baseline RSA and greater RSA withdrawal scored lower on prosocial behavior before and after treatment. Finally, children who exhibited greater RSA withdrawal scored lower on emotion regulation before and after treatment. CONCLUSIONS: We discuss these findings in terms of (a) individual differences in underlying neurobiological systems subserving appetitive (i.e., approach) motivation, emotion regulation, and social affiliation and (b) the need to develop more intensive interventions targeting neurobiologically vulnerable children.

One-year follow-up of combined parent and child intervention for young children with ADHD.

Efficacies of the Incredible Years (IY) interventions are well-established in children with oppositional defiant disorder (ODD) but not among those with a primary diagnosis of attention-deficit/hyperactivity disorder (ADHD). We sought to evaluate 1-year follow-up outcomes among young children with ADHD who were treated with the IY interventions. Four- to 6-year-olds with ADHD (n = 49, 73% male) participated in 6 months of treatment using the IY parent and child interventions. Immediate posttreatment results indicated improvements in parenting, children's externalizing and attention problems, and social contact at school. At 1-year follow up, 22 of 27 variables that showed significant posttreatment effects demonstrated maintenance to 1-year follow up. Children with higher ODD symptoms at baseline showed more improvement in oppositionality and total behavior problems, and their mothers showed more improvement on harsh discipline scores. Approximately 70 to 75% of children were reported by their parents and teachers to fall below clinical cutoffs on measures of externalizing symptoms at the 1-year follow up (compared to 50% at baseline), and more than 50% fell below clinical cutoffs on measures of hyperactivity and inattentiveness (all were in the clinical range at baseline). Children with ADHD who were treated with the IY parent and child treatment programs showed maintenance of treatment effects 1 year after treatment.

Combining parent and child training for young children with ADHD.

The efficacy of the Incredible Years parent and child training programs is established in children diagnosed with oppositional defiant disorder but not among young children whose primary diagnosis is attention-deficit/hyperactivity disorder (ADHD). We conducted a randomized control trial evaluating the combined parent and child program interventions among 99 children diagnosed with ADHD (ages 4-6). Mother reported significant treatment effects for appropriate and harsh discipline, use of physical punishment, and monitoring, whereas fathers reported no significant parenting changes. Independent observations revealed treatment effects for mothers' praise and coaching, mothers' critical statements, and child total deviant behaviors. Both mothers and fathers reported treatment effects for children's externalizing, hyperactivity, inattentive and oppositional behaviors, and emotion regulation and social competence. There were also significant treatment effects for children's emotion vocabulary and problem-solving ability. At school teachers reported treatment effects for externalizing behaviors and peer observations indicated improvements in treated children's social competence.

Enhancing a classroom social competence and problem-solving curriculum by offering parent training to families of moderate- to high-risk elementary school children.

The Incredible Years parent and classroom interventions were evaluated for the first time in elementary schools. Culturally diverse, socioeconomically disadvantaged schools were randomly assigned to intervention or control (CON). In intervention schools, all children received a 2-year classroom intervention beginning in kindergarten. In addition, indicated children were randomly assigned to also receive parent training (PT + CR) or only the classroom intervention (CR). PT + CR mothers reported that, following intervention, children showed fewer externalizing problems and more emotion regulation than CR or CON children. Observations showed that child-mother bonding was stronger in the PT + CR condition than in the CON condition, and PT + CR mothers were significantly more supportive and less critical than CR or CON mothers. Teachers reported that PT + CR mothers were significantly more involved in school and that children in the PT + CR and the CR conditions had significantly fewer externalizing problems than in the CON condition.

Mediators, moderators, and predictors of 1-year outcomes among children treated for early-onset conduct problems: a latent growth curve analysis.

Several child conduct problem interventions have been classified as either efficacious or well established. Nevertheless, much remains to be learned about predictors of treatment response and mechanisms of behavioral change. In this study, the authors combine data from 6 randomized clinical trials and 514 children, ages 3.0-8.5 years, to evaluate moderators, mediators, and predictors of outcome. Among other findings, latent growth curve models of mother-report and observational measures of child externalizing behaviors suggested that marital adjustment, maternal depression, paternal substance abuse, and child comorbid anxiety/depression each moderated treatment response. Moreover, critical, harsh, and ineffective parenting both predicted and mediated outcome, with the most favorable responses observed when parents scored relatively low on each construct at intake yet improved during treatment. Implications for treatment nonresponders are discussed.

Halting the development of conduct problems in head start children: the effects of parent training.

We examined parent and child moderators of outcome, program engagement effects, and predictors of engagement in the Incredible Years Parent Training Program. Head Start classrooms (N = 882 children) were randomly assigned to an intervention condition (that received the Incredible Years program) or to a control condition (that received usual Head Start services). Structural equation modeling (SEM) was used to model the effects of the training program on child outcomes. The analyses showed differential program effects depending on children's initial levels of conduct problems and mothers' initial levels of critical parenting. Children with high baseline levels of conduct problems and children of mothers with high initial levels of critical parenting benefited most from the program. Changes in children's conduct problems were also related to maternal engagement in the program and to intervention mothers' success at reducing their critical parenting.

Treating children with early-onset conduct problems: intervention outcomes for parent, child, and teacher training.

Families of 159, 4- to 8-year-old children with oppositional defiant disorder (ODD) were randomly assigned to parent training (PT); parent plus teacher training (PT + TT); child training (CT); child plus teacher training (CT + TT); parent, child, plus teacher training (PT + CT + TT); or a waiting list control. Reports and independent observations were collected at home and school. Following the 6-month intervention, all treatments resulted in significantly fewer conduct problems with mothers, teachers, and peers compared to controls. Children's negative behavior with fathers was lower in the 3 PT conditions than in control. Children showed more prosocial skills with peers in the CT conditions than in control. All PT conditions resulted in less negative and more positive parenting for mothers and less negative parenting for fathers than in control. Mothers and teachers were also less negative than controls when children received CT. Adding TT to PT or CT improved treatment outcome in terms of teacher behavior management in the classroom and in reports of behavior problems.

The role of mental health factors and program engagement in the effectiveness of a preventive parenting program for Head Start mothers.

Head Start centers were randomly assigned to intervention (parent training) or control conditions, and the role of maternal mental health risk factors on participation in and benefit from parent training was examined. Parenting was measured by parent report and independent observation in 3 domains: harsh/negative, supportive/positive, inconsistent/ineffective parenting. Structural equation modeling showed that parent engagement training was associated with improved parenting in a dose-response fashion. Mothers with mental health risk factors (i.e., depression, anger, history of abuse as a child, and substance abuse) exhibited poorer parenting than mothers without these risk factors. However, mothers with risk factors were engaged in and benefited from the parenting training program at levels that were comparable to mothers without these risk factors.