Melissa R. Dvorsky

The Association Between Sluggish Cognitive Tempo and Academic Functioning in Youth with Attention-Deficit/Hyperactivity Disorder (ADHD)

The purpose of the study was to evaluate the relation between Sluggish Cognitive Tempo (SCT) and academic functioning in a sample of 52 adolescents (40 males, 12 females) with Attention-Deficit/Hyperactivity Disorder (ADHD; Mage = 13.75). This study builds on prior work by utilizing an empirically-based and psychometrically validated measure of SCT, collecting ratings of SCT from both parents and teachers, and examining associations with multiple domains of academic functioning from both the parent and teacher perspective as well as grade point average (GPA). Both SCT and DSM-IV symptoms of inattention were significantly correlated with domains of academic functioning. Multiple regression analyses demonstrated that the parent-rated SCT Slow subscale predicted overall academic functioning, organizational skills impairment, and homework problems above and beyond ADHD symptoms and child and demographic characteristics known to be associated with academics, including intelligence, academic achievement, and family income. The teacher-rated SCT Low Initiation/Persistence subscale also predicted homework problems and was the only SCT variable to predict school grades above and beyond ADHD symptoms and relevant covariates. Both the SCT Slow and Low Initiation/Persistence subscales include items related to youth seeming apathetic, unmotivated, and lacking initiative, behaviors that are strongly related to ADHD symptoms of inattention but not currently captured by the DSM-IV. Implications of these findings towards supporting the external validity of the SCT construct are discussed along with potential implications for intervention.

Sluggish cognitive tempo is associated with academic functioning and internalizing symptoms in college students with and without attention‐deficit/hyperactivity disorder.

OBJECTIVES The purposes of the present studies were to (a) examine the factor structure of sluggish cognitive tempo (SCT) and attention-deficit/hyperactivity disorder (ADHD) in college students and (b) examine the associations between SCT and academic functioning and internalizing symptoms in college students with and without ADHD. METHOD In Study 1, a confirmatory factor analysis of the Barkley Adult ADHD Rating Scale-IV (BAARS-IV) was conducted in a sample of 768 college students (aged 17-34 years, 68% female). In Study 2, we examined the relation of SCT to academic functioning and internalizing symptoms in a sample of 72 college students rigorously diagnosed with ADHD (aged 17-35 years, 44% female). RESULTS Study 1 results supported the factor structure of the BAARS-IV, with the optimal model comprising 4 correlated but distinct factors: SCT, Inattention, Hyperactivity, and Impulsivity. After controlling for correlated demographic variables and ADHD symptoms, SCT was significantly related to academic impairment (including grade point average), anxiety, and depression. In Study 2, SCT again contributed unique variance to internalizing symptoms and academic impairment after controlling for correlated participant characteristics (i.e., sex, age, race, parent education level, family income, ADHD medication use, and mental health service utilization) and ADHD symptom severity. CONCLUSIONS These results fill an important gap in the literature by (a) confirming SCT to be distinct from ADHD in emerging adulthood, (b) demonstrating SCT to be strongly linked to college student adjustment, and (c) providing support for the hypothesis that SCT is associated with psychosocial functioning in both individuals with and without ADHD.

Clinical implications of daytime sleepiness for the academic performance of middle school-aged adolescents with attention deficit hyperactivity disorder.

This study investigated the relative impact of total time slept per night and daytime sleepiness on the academic functioning of 100 middle school‐aged youth (mean age = 11.9) with attention deficit hyperactivity disorder (ADHD). The primary goal of the study was to determine if total time slept per night and/or daytime sleepiness, as measured by youth self‐report on the Pediatric Daytime Sleepiness Scale (PDSS), predicted academic functioning above and beyond symptoms of ADHD and relevant covariates, such as intelligence, achievement scores and parent education level. Self‐reported daytime sleepiness but not self‐reported total time slept per night was associated significantly with all academic outcomes. When examined in a hierarchical regression model, self‐reported daytime sleepiness significantly predicted parent‐rated homework problems and academic impairment and teacher‐rated academic competence above and beyond symptoms of ADHD and relevant covariates, but did not predict grade point average or teacher‐rated academic impairment. The implications of these findings for understanding more clearly the association between ADHD and sleep and the functional implications of this relationship are discussed.

Are Sluggish Cognitive Tempo and Daytime Sleepiness Distinct Constructs

Sluggish cognitive tempo (SCT) and daytime sleepiness are both common in individuals with attention-deficit/hyperactivity disorder (ADHD). There appears to be considerable overlap between the tired and lethargic aspects of SCT and behaviors frequently exhibited by individuals with daytime sleepiness. However, no studies have examined the degree to which these constructs overlap and whether or not they are empirically distinct. In Study 1, a confirmatory factor analysis with the SCT subscale of the Barkley Adult ADHD Rating Scale-IV (BAARS-IV) and the Epworth Sleepiness Scale (ESS) was conducted in a sample of 768 college students. Results demonstrated that SCT and daytime sleepiness exhibit considerable overlap but are empirically distinct. In Study 2, we examined the relation between SCT and daytime sleepiness and also the impact of comorbid SCT and sleepiness on the functioning of 58 college students rigorously diagnosed with ADHD. Regression analyses in both Study 1 and Study 2 showed that SCT predicts daytime sleepiness above and beyond symptoms of ADHD, anxiety, and depression. The 2 constructs were significantly related (r = .51), with the highest correlations occurring between the SCT tired and lethargic items with daytime sleepiness. College students with ADHD + SCT and daytime sleepiness were significantly more impaired than college students diagnosed with ADHD without SCT or daytime sleepiness. Together, these results fill an important gap in the literature by confirming SCT to be overlapping but empirically distinct from daytime sleepiness and demonstrating that SCT and daytime sleepiness are associated with functioning in college students with ADHD.

The impact of daytime sleepiness on the school performance of college students with attention deficit hyperactivity disorder (ADHD): a prospective longitudinal study

This prospective longitudinal study evaluated the impact of daytime sleepiness on the school performance of 62 college students diagnosed comprehensively with attention deficit hyperactivity disorder. The primary goal of the study was to determine if self‐reported daytime sleepiness rated at the beginning of the academic year could predict academic and overall functioning at the end of the academic year while also considering potentially important covariates, including symptoms of inattention, hyperactivity and impulsivity, medication status and whether or not students lived at home or on‐campus. Self‐reported daytime sleepiness predicted longitudinally school maladjustment, overall functional impairment and the number of D and F grades (i.e. poor and failing) students received in courses above and beyond both self‐ and parent‐report of symptoms, but did not predict overall grade point average. Living at home served as a protective factor and was associated with less school maladjustment and overall impairment. Gender was the only significant predictor in the overall grade point average model, with female gender associated with higher overall grades. The implications of these findings for monitoring and treatment of sleep disturbances in college students with attention deficit hyperactivity disorder are discussed.

The Critical Role of School Psychology in the School Mental Health Movement.

School mental health (SMH) programs are gaining momentum and, when done well, are associated with improved academic and social-emotional outcomes. Professionals from several education and mental health disciplines have sound training and experiences needed to play a critical role in delivering quality SMH services. School psychologists, specifically, are in a key position to advance SMH programs and services. Studies have documented that school psychologists desire more prominent roles in the growth and improvement of SMH, and current practice models from national organizations encourage such enhanced involvement. This article identifies the roles of school psychologists across a three-tiered continuum of SMH practice and offers an analysis of current training and professional development opportunities aimed at such role enhancement. We provide a justification for the role of school psychologists in SMH, describe a framework for school psychologists in the SMH delivery system, discuss barriers to and enablers of this role for school psychologists, and conclude with recommendations for training and policy.

Predicting Impairment in College Students With ADHD: The Role of Executive Functions.

Objective: This study longitudinally evaluated whether parent-ratings and self-ratings of executive function (EF) predicted the academic and overall functioning of college students with ADHD and whether EF deficits mediated the relationship between ADHD symptoms and functioning. Method: A prospective longitudinal study of 59 college students comprehensively diagnosed with ADHD and their parents who completed ratings at the beginning and end of the school year. Results: Student-rated motivation and parent-rated emotion regulation significantly predicted overall impairment above and beyond symptoms of ADHD. Student-rated EF motivation mediated the relationship between ADHD symptoms and overall impairment. Student-rated EF organization mediated the relationship between ADHD symptoms and end of the year grades. Conclusion: Motivation and organization aspects of EF appear particularly important for functioning. However, given the study’s modest sample size, additional longitudinal research is needed to confirm these findings and to develop best-practice assessment and treatment recommendations for college students with ADHD.

The Protective Effects of Social Factors on the Academic Functioning of Adolescents With ADHD

There is considerable evidence that externalizing disorders such as attention deficit/hyperactivity disorder (ADHD) put youth at risk for a range of adverse academic outcomes. It is importantly to note that some youth avoid these negative outcomes, yet there is a gap in our understanding of these resilient youth. The purpose of this study was to longitudinally evaluate social acceptance and social skills as potential protective factors of the associations between inattentive, hyperactive/impulsive, and oppositional defiant behaviors with academic outcomes. Participants included a sample of 93 middle school students comprehensively diagnosed with ADHD. Parents and adolescents completed ratings of social skills and perceived social acceptance. School grades and teacher-rated academic impairment were assessed 18 months later as longitudinal academic functioning outcomes. Inattention and social acceptance were associated with academic outcomes 18 months later. Regression analyses revealed that parent- and adolescent-rated social acceptance demonstrated promotive effects for grades and against teacher-rated academic impairment. Further, social acceptance significantly interacted with inattention in predicting school grades, such that high parent- and adolescent-rated social acceptance significantly attenuated the relationship between inattention and poor grades, even after controlling for baseline grades and intelligence. The presence of social acceptance was especially critical for adolescents with high levels of inattention. Specifically, adolescents with high inattention and high social acceptance had a mean grade point average of 2.5, and adolescents with high inattention and low social acceptance had a mean grade point average of 1.5. These findings demonstrate that social acceptance may be an important intervention target for improving academic outcomes among adolescents with ADHD.

Overcoming the research-to-practice gap: A randomized trial with two brief homework and organization interventions for students with ADHD as implemented by school mental health providers.

Objective: To evaluate the effectiveness of 2 brief school-based interventions targeting the homework problems of adolescents with attention-deficit/hyperactivity disorder (ADHD)—the Homework, Organization, and Planning Skills (HOPS) intervention and the Completing Homework by Improving Efficiency and Focus (CHIEF) intervention, as implemented by school mental health providers during the school day. A secondary goal was to use moderator analyses to identify student characteristics that may differentially predict intervention response. Method: Two-hundred and eighty middle school students with ADHD were randomized to the HOPS or CHIEF interventions or to waitlist, and parent and teacher ratings were collected pre, post, and at a 6-month follow-up. Results: Both interventions were implemented with fidelity by school mental health providers. Participants were pulled from elective periods and sessions averaged less than 20 min. Participants in HOPS and CHIEF demonstrated significantly greater improvements in comparison with waitlist on parent ratings of homework problems and organizational skills and effect sizes were large. HOPS participants also demonstrated moderate effect size improvements on materials management and organized action behaviors according to teachers. HOPS participants made significantly greater improvements in parent- and teacher-rated use of organized actions in comparison with CHIEF, but not on measures of homework problems. Moderation analyses revealed that participants with more severe psychopathology and behavioral dysregulation did significantly better with the HOPS intervention as compared to the CHIEF intervention. Conclusions: Brief school-based interventions implemented by school providers can be effective. This type of service delivery model may facilitate overcoming the oft cited research-to-practice gap.

Prevalence, Patterns, and Predictors of Sleep Problems and Daytime Sleepiness in Young Adolescents With ADHD:

Objective: The primary objective of this study was to evaluate the prevalence of multiple types of sleep problems in young adolescents with ADHD. Method: Adolescents comprehensively diagnosed with ADHD (N = 262) and their caregivers completed well-validated measures of sleep problems and daytime sleepiness. Participants also completed measures related to medication use, comorbidities, and other factors that could predict sleep problems. Results: Daytime sleepiness was by far the most common sleep problem, with 37% of adolescents meeting the clinical threshold according to parent report and 42% according to adolescent report. In contrast, prevalence rates for specific nighttime sleep problems ranged from 1.5% to 7.6%. Time spent in bed, bedtime resistance, ADHD inattentive symptoms, and Sluggish Cognitive Tempo (SCT) symptoms were significant in the final model predicting daytime sleepiness. Conclusion: Adolescents with ADHD commonly experience problems with daytime sleepiness that may significantly affect their functioning, but this may not be directly attributable to specific sleep problems.