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Dive into the research topics where Matthew A. Jarrett is active.

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Featured researches published by Matthew A. Jarrett.


Journal of Consulting and Clinical Psychology | 2009

One-Session Treatment of Specific Phobias in Youth: A Randomized Clinical Trial in the United States and Sweden.

Thomas H. Ollendick; Lars-Göran Öst; Lena Reuterskiöld; Natalie M. Costa; Rio Cederlund; Cristian Sirbu; Thompson E. Davis; Matthew A. Jarrett

One hundred and ninety-six youth, ages 7-16, who fulfilled Diagnostic and Statistical Manual of Mental Disorders (4th ed.) criteria for various specific phobias were randomized to a one-session exposure treatment, education support treatment, or a wait list control group. After the waiting period, the wait list participants were offered treatment and, if interested, rerandomized to 1 of the 2 active treatments. The phobias were assessed with semistructured diagnostic interviews, clinician severity ratings, and behavioral avoidance tests, whereas fears, general anxiety, depression, and behavior problems were assessed with self- and parent report measures. Assessments were completed pretreatment, posttreatment, and at 6 months following treatment. Results showed that both treatment conditions were superior to the wait list control condition and that 1-session exposure treatment was superior to education support treatment on clinician ratings of phobic severity, percentage of participants who were diagnosis free, child ratings of anxiety during the behavioral avoidance test, and treatment satisfaction as reported by the youth and their parents. There were no differences on self-report measures. Treatment effects were maintained at follow-up. Implications of these findings are discussed.


Clinical Psychology Review | 2008

A conceptual review of the comorbidity of attention-deficit/hyperactivity disorder and anxiety: Implications for future research and practice

Matthew A. Jarrett; Thomas H. Ollendick

Although approximately 25% of children with attention-deficit/hyperactivity disorder (ADHD) exhibit an anxiety disorder, the comorbidity of ADHD and anxiety has been given less attention than comorbidity of ADHD and oppositional or conduct disorders. While it is true that comorbidity between ADHD and these externalizing disorders is more prevalent (approximately 50%), the comorbidity of ADHD and anxiety deserves careful scrutiny in its own right in as much as this comorbidity may have important implications for etiology, assessment, and treatment. The primary purpose of the current review is to examine the methodological and substantive reasons for the comorbidity of ADHD and anxiety. Methodological areas include definitional issues and informant characteristics, while substantive areas include genetics, temperament, neurobiological and neuropsychological functioning, family influences, and temporal relations between ADHD and anxiety. The study of the comorbidity of ADHD and anxiety will be advanced through a more precise phenotypic classification of ADHD and the integration of research in adjacent fields such as temperament and genetics with current research on the psychopathology of ADHD.


Clinical Psychology Review | 2008

Comorbidity as a predictor and moderator of treatment outcome in youth with anxiety, affective, attention deficit/hyperactivity disorder, and oppositional/conduct disorders.

Thomas H. Ollendick; Matthew A. Jarrett; Amie E. Grills-Taquechel; Laura D. Hovey; Jennifer C. Wolff

In the present review, we examine one of the critical issues that have been raised about evidence-based treatments and their portability to real-world clinical settings: namely, the presence of comorbidity in the participants who have been treated in these studies and whether the presence of comorbidity predicts or moderates treatment outcomes. In doing so, we examine treatment outcomes for the four most commonly occurring childhood psychiatric disorders: Anxiety disorders, affective disorders, attention deficit/hyperactivity disorder (ADHD), and oppositional defiant disorder (ODD)/conduct disorder (CD). For each of these disorders, we first review briefly the prevalence of comorbidity in epidemiological and clinical samples and then highlight the evidence-based treatments for these disorders. We next determine the effects of comorbidity on treatment outcomes for these disorders. For the most part, comorbidity in the treated samples is the rule, not the exception. However, the majority of studies have not explored whether comorbidity predicts or moderates treatment outcomes. For the not insignificant number of studies that have examined this issue, comorbidity has not been found to affect treatment outcomes. Notable exceptions are highlighted and recommendations for future research are presented.


Behavior Therapy | 2015

Specific phobias in youth: a randomized controlled trial comparing one-session treatment to a parent-augmented one-session treatment.

Thomas H. Ollendick; Thorhildur Halldorsdottir; Maria Fraire; Kristin E. Austin; Ryoichi J. P. Noguchi; Krystal M. Lewis; Matthew A. Jarrett; N. Cunningham; Kristin E. Canavera; Kristy Benoit Allen; Maria J. Whitmore

OBJECTIVE Examine the efficacy of a parent-augmented One-Session Treatment (A-OST) in treating specific phobias (SP) in youth by comparing this novel treatment to child-focused OST, a well-established treatment. METHOD A total of 97 youth (ages 6-15, 51.5% female, 84.5% White) who fulfilled diagnostic criteria for SP were randomized to either A-OST or OST. SPs were assessed with semistructured diagnostic interviews, clinician improvement ratings, and parent and child improvement ratings. In addition, measures of treatment satisfaction and parental self-efficacy were obtained. Blind assessments were completed pretreatment, posttreatment, and 1month and 6months following treatment. Analyses were undertaken using mixed models. In addition, gender, age, internalizing/externalizing problems, parent overprotection, and parent anxiety were examined as potential predictors and moderators of treatment outcome. RESULTS Both treatment conditions produced similar outcomes with approximately 50% of youth in both treatments diagnosis free and judged to be much or very much improved at posttreatment and 1-month follow-up. At 6-month follow-up, however, the treatments diverged with OST resulting in marginally superior outcomes to A-OST, contrary to predictions. Only age of child predicted treatment outcome across the two treatments (older children did better); unexpectedly, none of the variables moderated treatment outcomes. CONCLUSIONS Parent augmentation of OST produced no appreciable gains in treatment outcomes. Directions for future research are highlighted.


Journal of Consulting and Clinical Psychology | 2012

Treatment of comorbid attention-deficit/hyperactivity disorder and anxiety in children: a multiple baseline design analysis.

Matthew A. Jarrett; Thomas H. Ollendick

OBJECTIVE The present study evaluated a 10-week psychosocial treatment designed specifically for children with attention-deficit/hyperactivity disorder (ADHD) and a comorbid anxiety disorder. METHOD Using a nonconcurrent multiple baseline design, the authors treated 8 children ages 8-12 with ADHD, combined type, and at least 1 of 3 major anxiety disorders (separation anxiety disorder, generalized anxiety disorder, social phobia). The integrated treatment protocol involved parent management training for ADHD and family-based cognitive-behavioral therapy for anxiety. Pretreatment assessments included semistructured diagnostic interviews and other standardized measures to determine study eligibility. Children were randomized to 1 of 3 baseline control conditions (i.e., 2, 3, or 4 weeks) and subsequently treated in a university-based psychosocial treatment clinic. Weekly assessments of ADHD and anxiety disorder symptoms occurred throughout treatment and comprehensive assessments were obtained at pretreatment, 1-week posttreatment, and 6-months posttreatment. RESULTS Single-case results supported greater success in the treatment phase relative to the baseline phase for both ADHD and anxiety symptoms, and ADHD and anxiety symptoms appeared to change concurrently. Pre-post group analyses revealed significant and clinically meaningful improvements in ADHD and anxiety symptoms at 1-week posttreatment, but only anxiety symptoms moved into the subclinical range. At 6-months follow-up, treatment effects were maintained with new movement into the subclinical range for ADHD. CONCLUSIONS The present study provides initial data on an integrated treatment protocol for ADHD and anxiety. Further replication and evaluation are needed. Implications of the findings are discussed.


Journal of Attention Disorders | 2016

Characteristics of Children With ADHD and Comorbid Anxiety

Matthew A. Jarrett; Jennifer C. Wolff; Thompson E. Davis; Maria J. W. Cowart; Thomas H. Ollendick

Objective: The following comorbid subgroups of ADHD have been proposed: ADHD Only, ADHD + anxiety disorders (ANX), ADHD + oppositional defiant disorder/conduct disorder (ODD/CD), and ADHD + ODD/CD + ANX. The current study examined a subset of these groups. Method: A total of 134 children and adolescents (M age = 9.92; range = 6-17) from a clinic-referred sample (n = 407) were grouped based on a semistructured diagnostic interview: ADHD only (n = 41), ADHD + ANX (n = 31), and ANX Only (n = 62). Results: Findings supported greater parent-reported anxiety symptoms in anxiety groups, and greater parent- and teacher-reported attention problems in ADHD groups. ADHD groups performed worse on a continuous performance test, whereas ADHD + ANX performed worse on working memory than ADHD Only. ADHD + ANX reported more physical anxiety symptoms than ADHD Only. Conclusion: Comorbid anxiety should be considered in ADHD assessment and treatment.


Journal of Attention Disorders | 2017

ADHD Dimensions and Sluggish Cognitive Tempo Symptoms in Relation to Self-Report and Laboratory Measures of Neuropsychological Functioning in College Students.

Matthew A. Jarrett; Hannah F. Rapport; Ana T. Rondon; Stephen P. Becker

Objective: This study examined ADHD and sluggish cognitive tempo (SCT) symptoms in relation to self-report and laboratory measures of neuropsychological functioning in college students. Method: College students (N = 298, aged 17-25, 72% female) completed self-reports of ADHD, SCT, depression, sleep, functional impairment, and executive functioning (EF). Participants also completed a visual working memory task, a Stroop test, and the Conners’ Continuous Performance Test–II (CPT-II). Results: ADHD inattentive and SCT symptoms were strong predictors of self-reported EF, with inattention the strongest predictor of Time Management and Motivation and SCT the strongest predictor of Self-Organization/Problem Solving. SCT (but not inattention) was associated with Emotion Regulation. No relationships were found between self-reported symptoms and laboratory task performance. Between-group analyses were largely consistent with regression analyses. Conclusion: Self-reported ADHD and SCT symptoms are strongly associated with college students’ self-reported EF, but relationships with laboratory task measures of neuropsychological functioning are limited.


Journal of Clinical Child and Adolescent Psychology | 2016

Parent Management Training and Collaborative & Proactive Solutions: A Randomized Control Trial for Oppositional Youth.

Thomas H. Ollendick; Ross W. Greene; Kristin E. Austin; Maria Fraire; Thorhildur Halldorsdottir; Kristy Benoit Allen; Matthew A. Jarrett; Krystal M. Lewis; Maria Whitmore Smith; N. Cunningham; Ryoichi J. P. Noguchi; Kristin E. Canavera; Jennifer C. Wolff

This study examined the efficacy of Collaborative & Proactive Solutions (CPS) in treating oppositional defiant disorder (ODD) in youth by comparing this novel treatment to Parent Management Training (PMT), a well-established treatment, and a waitlist control (WLC) group. One hundred thirty-four youth (ages 7–14, 61.9% male, 83.6% White) who fulfilled Diagnostic and Statistical Manual of Mental Disorders (4th ed.) criteria for ODD were randomized to CPS, PMT, or WLC groups. ODD was assessed with semistructured diagnostic interviews, clinical global severity and improvement ratings, and parent report measures. Assessments were completed pretreatment, posttreatment, and at 6 months following treatment. Responder and remitter analyses were undertaken using intent-to-treat mixed-models analyses. Chronological age, gender, and socioeconomic status as well as the presence of comorbid attention deficit/hyperactivity and anxiety disorders were examined as predictors of treatment outcome. Both treatment conditions were superior to the WLC condition but did not differ from one another in either our responder or remitter analyses. Approximately 50% of youth in both active treatments were diagnosis free and were judged to be much or very much improved at posttreatment, compared to 0% in the waitlist condition. Younger age and presence of an anxiety disorder predicted better treatment outcomes for both PMT and CPS. Treatment gains were maintained at 6-month follow-up. CPS proved to be equivalent to PMT and can be considered an evidence-based, alternative treatment for youth with ODD and their families.


Journal of Clinical Child and Adolescent Psychology | 2014

Internalizing problems as a predictor of change in externalizing problems in at-risk youth

Matthew A. Jarrett; Salma Siddiqui; John E. Lochman; Lixin Qu

Intervention and prevention programs for children with externalizing problems frequently involve children with co-occurring internalizing problems. Little is known about how these co-occurring internalizing problems predict outcomes, particularly for programs involving cognitive-behavioral strategies. The current study examined how a set of child-related risk factors (including anxiety and depressive symptoms) predicted change in parent- and teacher-reported externalizing problems following a school-based preventative intervention for children at risk for externalizing problems. Participants included 112 preadolescent children (ages 9–12) who participated in a study designed to evaluate the efficacy of the Coping Power Program (Lochman & Wells, 2004). Participants included 81 boys (68%) who were primarily African American (69%) or Caucasian (30%). Regression analyses were conducted to examine predictors of change in parent- and teacher-reported externalizing problems on the Behavior Assessment System for Children (Reynolds & Kamphaus, 1992). Results indicated that greater child depression symptoms (as reported by parent or teacher) were associated with a larger reduction in externalizing behavior problems based on parent or teacher report. This effect was found in both the parent and teacher models and held after controlling for a number of child-oriented baseline variables including baseline aggression. Future research studies should examine whether co-occurring symptoms of depression relate to enhanced changes in externalizing problems following intervention for externalizing problems, particularly when cognitive-behavioral interventions are utilized. In addition, it will be important for studies to examine such effects relative to a control group and/or alternative treatment conditions and to further explore possible mechanisms of change.


Archive | 2014

Handbook of borderline personality disorder in children and adolescents

Martin Sellbom; Matthew A. Jarrett

and meta-cognitive abilities that develop during early adolescence (Gottman, Katz, & Hooven, 1997). When the development of this awareness is impaired, individuals exhibit fewer constructive coping strategies and higher levels of maladaptive strategies such as rumination (Gohm & Clore, 2000; Rieffe, Oosterveld, Miers, Terwogt, & Ly, 2008). As one might expect, youths that are less informed about their own emotional experiences are less capable of developing appropriate repertoires of coping responses, and instead engage in ineffective approaches such as rumination. It is therefore significant that by adulthood, many with BPD 12 Development of Emotional Cascades in Borderline Personality Disorder 163

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Stephen P. Becker

Cincinnati Children's Hospital Medical Center

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G. Leonard Burns

Washington State University

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Jeffery N. Epstein

Cincinnati Children's Hospital Medical Center

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