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Papers by Mark Dadds

Research paper thumbnail of Therapist-assisted online treatment for child conduct problems in rural and urban families: Two randomized controlled trials

Journal of Consulting and Clinical Psychology, Aug 1, 2019

OBJECTIVE We examined the relative efficacy of an online versus face-to-face (FTF) parenting inte... more OBJECTIVE We examined the relative efficacy of an online versus face-to-face (FTF) parenting intervention for reducing the severity of child conduct problems and related parent and child outcomes in 2 randomized controlled trials. METHOD In Study 1, rural families (n = 133) with a child 3-9 years of age with a full or subclinical primary diagnosis of oppositional defiant or conduct disorder traveled to Sydney, Australia for a comprehensive assessment and randomization to receive either AccessEI, a 6-10 week online therapist-assisted parenting program, or FTF treatment, whereby they received the same program presented FTF during a 1-week treatment. To control for unavoidable treatment dosage differences in the first study, Study 2 was conducted in which urban families (n = 73) with a child aged 3 to 14 years meeting similar criteria as Study 1 were randomized to receive AccessEI versus FTF treatment. RESULTS In both studies, improvements in severity of child diagnoses and maternal measures of child behavior showed very large effect sizes for both treatments at posttreatment and 3-month follow-up and did not differ across treatment conditions. There were moderate effect sizes for improvements in parent mental health and no differences across treatment conditions. CONCLUSIONS It is concluded that the effects of the therapist-assisted online parenting interventions for the treatment of child conduct problems were similar to a FTF intervention, providing evidence for the effectiveness of an accessible treatment for rural and remote families. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

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Research paper thumbnail of Sympathetic nervous system functioning during the face-to-face still-face paradigm in the first year of life

Development and Psychopathology, Dec 20, 2021

Contemporary theories of early development and emerging child psychopathology all posit a major, ... more Contemporary theories of early development and emerging child psychopathology all posit a major, if not central role for physiological responsiveness. To understand infants’ potential risk for emergent psychopathology, consideration is needed to both autonomic reactivity and environmental contexts (e.g., parent–child interactions). The current study maps infants’ arousal during the face-to-face still-face paradigm using skin conductance (n = 255 ethnically-diverse mother–infant dyads; 52.5% girls, mean infant age = 7.4 months; SD = 0.9 months). A novel statistical approach was designed to model the potential build-up of nonlinear counter electromotive force over the course of the task. Results showed a significant increase in infants’ skin conductance between the Baseline Free-play and the Still-Face phase, and a significant decrease in skin conductance during the Reunion Play when compared to the Still-Face phase. Skin conductance during the Reunion Play phase remained significantly higher than during the Baseline Play phase; indicating that infants had not fully recovered from the mild social stressor. These results further our understanding of infant arousal during dyadic interactions, and the role of caregivers in the development of emotion regulation during infancy.

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Research paper thumbnail of Building a National Clinical Trials Network in child and youth mental health: Growing Minds Australia

Australian and New Zealand Journal of Psychiatry, Mar 5, 2022

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Research paper thumbnail of Family Therapy Interventions for Psychopathy

Springer eBooks, 2022

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Research paper thumbnail of Examining Alternative Explanations of the Covariation of ADHD and Anxiety Symptoms in Children: A Community Study

Journal of Abnormal Child Psychology, Jul 17, 2007

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Research paper thumbnail of Een variant van parent-child interaction therapy voor jonge kinderen met harde en gevoelloze karaktertrekken: een open experimentele pilotstudie

Gezinstherapie wereldwijd, Nov 23, 2020

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Research paper thumbnail of Conduct disorders in Children and Adolescents

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Research paper thumbnail of Practitioner Review: Parenting interventions for child conduct problems: reconceptualising resistance to change

Journal of Child Psychology and Psychiatry, Feb 4, 2021

Parenting interventions based on social learning theory have received extensive empirical support... more Parenting interventions based on social learning theory have received extensive empirical support in the treatment of child conduct problems; yet, they fail to produce lasting gains in as many as a third of cases. Perspectives on these poor outcomes have been informed by numerous lines of research, and practitioner recommendations for improving such outcomes have often emphasized processes related to clinical engagement. In this Practitioner Review, we examine recent theory and evidence pertaining to these processes, including emerging research into the therapeutic relationship across face-to-face and eHealth treatment modalities, and the clinical engagement of both mothers and fathers. The concept of resistance to change is examined in light of these developments, and it is argued that the process of overcoming such resistance can be characterized as one of reflective practice. A novel process model based on this perspective is presented, comprising practical clinical strategies that are designed to be initiated from the earliest contacts with a family and build on one another across treatment.

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Research paper thumbnail of Risk of perpetrating intimate partner violence amongst men exposed to torture in conflict-affected Timor-Leste

Global mental health, 2018

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Research paper thumbnail of Parent training skills and methadone maintenance: clinical opportunities and challenges

Drug and Alcohol Dependence, Jun 1, 2000

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Research paper thumbnail of An examination of the differential relationship of marital discord to parents' discipline strategies for boys and girls

Journal of Abnormal Child Psychology, Apr 1, 1990

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Research paper thumbnail of Oppositional defiant disorder

Nature Reviews Disease Primers, Jun 22, 2023

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Research paper thumbnail of Development and Validation of the Knowledge of Parenting Strategies Scale: Measuring Effective Parenting Strategies

Journal of Child and Family Studies, Jun 26, 2018

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Research paper thumbnail of Stimulant side effects: prefrontal/basal ganglia circuit control at dopamine D1/D2 receptors

Australasian Psychiatry, Jan 14, 2014

Background: While side effects of stimulant medication used to treat children for attention defic... more Background: While side effects of stimulant medication used to treat children for attention deficit hyperactivity disorder have been clinically described as mild but variable, there is little or no research or understanding of biological mechanisms involved. Method: The present short review extends the ‘tonic-phasic’ dopamine hypothesis in terms of prefrontal and subcortical dopamine receptor (D1/D2) imbalance. Results: The minor allele of the dopamine D1 receptor predicts the ‘zombie-like’ motor side effect clinically described in some children treated with stimulant medications. Conclusion: Stimulant side effects may be best understood as reflecting imbalance in parallel cortico-thalamic-striatal circuits, and motor side effects as a result of prefrontal D1/D2 imbalance allowing greater motor inhibitory effects at subcortical D2 receptors. This is a variation of the ‘tonic-phasic’ hypothesis, which takes D1 allelic variation into account.

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Research paper thumbnail of Student Perceptions of Permissiveness and Teacher-Instigated Disciplinary Strategies

British Journal of Educational Psychology, Nov 1, 1990

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Research paper thumbnail of An Open Trial for an E-Health Treatment for Child Behavior Disorders I: Social Acceptability, Engagement, and Therapeutic Process

Evidence-based practice in child and adolescent mental health, Sep 20, 2016

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Research paper thumbnail of Dopamine Receptors and the Pharmacogenetics of Side-Effects of Stimulant Treatment for Attention-Deficit/Hyperactivity Disorder

Journal of Child and Adolescent Psychopharmacology, Aug 1, 2013

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Research paper thumbnail of Children's Perceptions of Time Out and Other Maternal Disciplinary Strategies: The Effects of Clinic Status and Exposure to Behavioural Treatment

Behaviour Change, Dec 1, 1987

Behaviour therapy is now beginning to assess the social validity, along with efficacy, of its tre... more Behaviour therapy is now beginning to assess the social validity, along with efficacy, of its treatments. Literature dealing with the social validity of parent-training programs is reviewed. The aim of this investigation was to obtain acceptability ratings of the “time out” procedure from the perspective of behaviour problem and non-problem children. The study looked at acceptability ratings of five maternal behaviours/disciplinary techniques (permissiveness, physical punishment, directed discussion, quiet time, time out) across four different situations (non-compliance with an initiating instruction, aggression toward others, non-compliance with a terminating instruction, non-compliance with known rule) by samples of clinical (problem behaviour) children and control children. Both groups were alike in rating permissiveness as less acceptable than any of the other behaviours across most situations and rating it as unacceptable in absolute terms. Time out was rated equally acceptable with physical punishment, directed discussion and quiet time. The results support previous findings that young children prefer interventionist to permissive parents, including the use of exclusionary time out. In a second study, ratings were taken from two clinical groups, treatment and waitlist, both at pre- and post-treatment. Despite large individual differences in the treatment group, no change in acceptability ratings was found at post-treatment. Thus, experiencing time out did not change the children's evaluation of this procedure. Possible reasons for these findings and their practical implications are discussed.

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Research paper thumbnail of Association between a polymorphism of the vasopressin 1B receptor gene and aggression in children

Psychiatric Genetics, Oct 1, 2014

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Research paper thumbnail of Keeping Parents Involved: Predicting Attrition in a Self-Directed, Online Program for Childhood Conduct Problems

Journal of Clinical Child and Adolescent Psychology, Aug 1, 2018

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Research paper thumbnail of Therapist-assisted online treatment for child conduct problems in rural and urban families: Two randomized controlled trials

Journal of Consulting and Clinical Psychology, Aug 1, 2019

OBJECTIVE We examined the relative efficacy of an online versus face-to-face (FTF) parenting inte... more OBJECTIVE We examined the relative efficacy of an online versus face-to-face (FTF) parenting intervention for reducing the severity of child conduct problems and related parent and child outcomes in 2 randomized controlled trials. METHOD In Study 1, rural families (n = 133) with a child 3-9 years of age with a full or subclinical primary diagnosis of oppositional defiant or conduct disorder traveled to Sydney, Australia for a comprehensive assessment and randomization to receive either AccessEI, a 6-10 week online therapist-assisted parenting program, or FTF treatment, whereby they received the same program presented FTF during a 1-week treatment. To control for unavoidable treatment dosage differences in the first study, Study 2 was conducted in which urban families (n = 73) with a child aged 3 to 14 years meeting similar criteria as Study 1 were randomized to receive AccessEI versus FTF treatment. RESULTS In both studies, improvements in severity of child diagnoses and maternal measures of child behavior showed very large effect sizes for both treatments at posttreatment and 3-month follow-up and did not differ across treatment conditions. There were moderate effect sizes for improvements in parent mental health and no differences across treatment conditions. CONCLUSIONS It is concluded that the effects of the therapist-assisted online parenting interventions for the treatment of child conduct problems were similar to a FTF intervention, providing evidence for the effectiveness of an accessible treatment for rural and remote families. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

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Research paper thumbnail of Sympathetic nervous system functioning during the face-to-face still-face paradigm in the first year of life

Development and Psychopathology, Dec 20, 2021

Contemporary theories of early development and emerging child psychopathology all posit a major, ... more Contemporary theories of early development and emerging child psychopathology all posit a major, if not central role for physiological responsiveness. To understand infants’ potential risk for emergent psychopathology, consideration is needed to both autonomic reactivity and environmental contexts (e.g., parent–child interactions). The current study maps infants’ arousal during the face-to-face still-face paradigm using skin conductance (n = 255 ethnically-diverse mother–infant dyads; 52.5% girls, mean infant age = 7.4 months; SD = 0.9 months). A novel statistical approach was designed to model the potential build-up of nonlinear counter electromotive force over the course of the task. Results showed a significant increase in infants’ skin conductance between the Baseline Free-play and the Still-Face phase, and a significant decrease in skin conductance during the Reunion Play when compared to the Still-Face phase. Skin conductance during the Reunion Play phase remained significantly higher than during the Baseline Play phase; indicating that infants had not fully recovered from the mild social stressor. These results further our understanding of infant arousal during dyadic interactions, and the role of caregivers in the development of emotion regulation during infancy.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Building a National Clinical Trials Network in child and youth mental health: Growing Minds Australia

Australian and New Zealand Journal of Psychiatry, Mar 5, 2022

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Family Therapy Interventions for Psychopathy

Springer eBooks, 2022

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Examining Alternative Explanations of the Covariation of ADHD and Anxiety Symptoms in Children: A Community Study

Journal of Abnormal Child Psychology, Jul 17, 2007

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Een variant van parent-child interaction therapy voor jonge kinderen met harde en gevoelloze karaktertrekken: een open experimentele pilotstudie

Gezinstherapie wereldwijd, Nov 23, 2020

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Conduct disorders in Children and Adolescents

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Practitioner Review: Parenting interventions for child conduct problems: reconceptualising resistance to change

Journal of Child Psychology and Psychiatry, Feb 4, 2021

Parenting interventions based on social learning theory have received extensive empirical support... more Parenting interventions based on social learning theory have received extensive empirical support in the treatment of child conduct problems; yet, they fail to produce lasting gains in as many as a third of cases. Perspectives on these poor outcomes have been informed by numerous lines of research, and practitioner recommendations for improving such outcomes have often emphasized processes related to clinical engagement. In this Practitioner Review, we examine recent theory and evidence pertaining to these processes, including emerging research into the therapeutic relationship across face-to-face and eHealth treatment modalities, and the clinical engagement of both mothers and fathers. The concept of resistance to change is examined in light of these developments, and it is argued that the process of overcoming such resistance can be characterized as one of reflective practice. A novel process model based on this perspective is presented, comprising practical clinical strategies that are designed to be initiated from the earliest contacts with a family and build on one another across treatment.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Risk of perpetrating intimate partner violence amongst men exposed to torture in conflict-affected Timor-Leste

Global mental health, 2018

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Research paper thumbnail of Parent training skills and methadone maintenance: clinical opportunities and challenges

Drug and Alcohol Dependence, Jun 1, 2000

Bookmarks Related papers MentionsView impact

Research paper thumbnail of An examination of the differential relationship of marital discord to parents' discipline strategies for boys and girls

Journal of Abnormal Child Psychology, Apr 1, 1990

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Oppositional defiant disorder

Nature Reviews Disease Primers, Jun 22, 2023

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Development and Validation of the Knowledge of Parenting Strategies Scale: Measuring Effective Parenting Strategies

Journal of Child and Family Studies, Jun 26, 2018

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Stimulant side effects: prefrontal/basal ganglia circuit control at dopamine D1/D2 receptors

Australasian Psychiatry, Jan 14, 2014

Background: While side effects of stimulant medication used to treat children for attention defic... more Background: While side effects of stimulant medication used to treat children for attention deficit hyperactivity disorder have been clinically described as mild but variable, there is little or no research or understanding of biological mechanisms involved. Method: The present short review extends the ‘tonic-phasic’ dopamine hypothesis in terms of prefrontal and subcortical dopamine receptor (D1/D2) imbalance. Results: The minor allele of the dopamine D1 receptor predicts the ‘zombie-like’ motor side effect clinically described in some children treated with stimulant medications. Conclusion: Stimulant side effects may be best understood as reflecting imbalance in parallel cortico-thalamic-striatal circuits, and motor side effects as a result of prefrontal D1/D2 imbalance allowing greater motor inhibitory effects at subcortical D2 receptors. This is a variation of the ‘tonic-phasic’ hypothesis, which takes D1 allelic variation into account.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Student Perceptions of Permissiveness and Teacher-Instigated Disciplinary Strategies

British Journal of Educational Psychology, Nov 1, 1990

Bookmarks Related papers MentionsView impact

Research paper thumbnail of An Open Trial for an E-Health Treatment for Child Behavior Disorders I: Social Acceptability, Engagement, and Therapeutic Process

Evidence-based practice in child and adolescent mental health, Sep 20, 2016

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Dopamine Receptors and the Pharmacogenetics of Side-Effects of Stimulant Treatment for Attention-Deficit/Hyperactivity Disorder

Journal of Child and Adolescent Psychopharmacology, Aug 1, 2013

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Children's Perceptions of Time Out and Other Maternal Disciplinary Strategies: The Effects of Clinic Status and Exposure to Behavioural Treatment

Behaviour Change, Dec 1, 1987

Behaviour therapy is now beginning to assess the social validity, along with efficacy, of its tre... more Behaviour therapy is now beginning to assess the social validity, along with efficacy, of its treatments. Literature dealing with the social validity of parent-training programs is reviewed. The aim of this investigation was to obtain acceptability ratings of the “time out” procedure from the perspective of behaviour problem and non-problem children. The study looked at acceptability ratings of five maternal behaviours/disciplinary techniques (permissiveness, physical punishment, directed discussion, quiet time, time out) across four different situations (non-compliance with an initiating instruction, aggression toward others, non-compliance with a terminating instruction, non-compliance with known rule) by samples of clinical (problem behaviour) children and control children. Both groups were alike in rating permissiveness as less acceptable than any of the other behaviours across most situations and rating it as unacceptable in absolute terms. Time out was rated equally acceptable with physical punishment, directed discussion and quiet time. The results support previous findings that young children prefer interventionist to permissive parents, including the use of exclusionary time out. In a second study, ratings were taken from two clinical groups, treatment and waitlist, both at pre- and post-treatment. Despite large individual differences in the treatment group, no change in acceptability ratings was found at post-treatment. Thus, experiencing time out did not change the children's evaluation of this procedure. Possible reasons for these findings and their practical implications are discussed.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Association between a polymorphism of the vasopressin 1B receptor gene and aggression in children

Psychiatric Genetics, Oct 1, 2014

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Keeping Parents Involved: Predicting Attrition in a Self-Directed, Online Program for Childhood Conduct Problems

Journal of Clinical Child and Adolescent Psychology, Aug 1, 2018

Bookmarks Related papers MentionsView impact