Titel Deelnemers "The Short- and Longer-Term Effects of Brief Behavioral Parent Training Versus Care as Usual in Children with Behavioral Difficulties: Study Protocol for a Randomized Controlled Trial" "Saskia Van der Oord" "Editorial: Executive Function and Education, volume II: Considerations for Academic Success - Across Contexts and Populations" "Dieter Baeyens" "Sleep and Sleep Hygiene of Adolescents With and Without ADHD During COVID-19" "Finja Marten, Lena Keuppens, Dieter Baeyens, Marina Danckaerts, Saskia Van der Oord" "OBJECTIVE: This study examined the effect of COVID-19 restrictions on the sleep and sleep hygiene of adolescents with ADHD and comorbid sleep problems and neurotypical adolescents (NT). METHOD: Four groups (two ADHD and two NT) of in total 100 adolescents (50 ADHD and 50 NT) were included. One ADHD and NT group were tested during many COVID-19 restrictions, the other during few. MANCOVAs were implemented with ADHD diagnosis and level of COVID-19 restrictions as independent and sleep outcomes (subjective and objective total sleep time (TST) and sleep onset latency (SOL), sleep and sleep hygiene problems) as dependent variables. RESULTS: Both groups had a shorter objective TST during the week during many COVID-19 restrictions. Furthermore, adolescents with ADHD had a shorter subjective SOL during the weekend when there were many COVID-19 restrictions, while the SOL of the NT group stayed the same. CONCLUSION: COVID-19 restrictions are related to the sleep of adolescents with and without ADHD. However, causality and underlying mechanisms need further investigation." "How to make mental health services more youth-friendly? A Delphi study involving young adults, parents and professionals" "Ruud van Winkel, Dieter Baeyens, Marina Danckaerts" "INTRODUCTION: Although youth-friendly service characteristics have been previously identified, consensus among a representative group of stakeholders about which of these characteristics are truly relevant to the youth-friendliness of services is currently lacking. In our study, young adults, parents and professionals were consulted on this topic to reveal existing (dis)agreement. In addition, (dis)agreement on feasibility for implementation in clinical practice was also assessed. METHODS: A mixed-method Delphi approach was used with three online questionnaire rounds and a physical meeting. Young adults (18-26 years) and parents were part of a public panel and professionals were allocated to the professional panel. In the rounds, participants were asked to rate the importance and feasibility of each item. Subsequently, the percentage agreement (% of participants giving a score of 7 or above on a 9-point Likert scale) within and across panels was calculated. Consensus was assumed to have been reached when at least 70% agreement was achieved. A thematic analysis of the qualitative data, obtained in the rounds and the physical meeting, was performed to identify overarching themes and characteristics of relevance to the youth-friendliness of services. RESULTS: For 65% of the items included in the Delphi questionnaire, consensus on importance was reached within both panels. Participants showed more insecurity about the feasibility of these items, however. Our thematic analysis revealed reasons for disagreement between and within the panels. CONCLUSIONS: Our study revealed substantial between- and within-panel agreement on youth-friendly service characteristics. We recommend that the items for which consensus was reached should be used as a checklist in terms of youth mental health service development, design and delivery. The characteristics for which there was disagreement between and within the panels should inspire an ongoing trialogue between young adults, parents and professionals both on the individual level and the service level. PATIENT OR PUBLIC CONTRIBUTION: In this study, (parents of) young adults with lived experience were included as experts, including one of the coauthors. This coauthor contributed to the manuscript by having a final say about the included quotes." "A Qualitative Study into Teacher–Student Interaction Strategies Employed to Support Primary School Children’s Working Memory" "Simona Sankalaitė, Sophie Pollé, Dieter Baeyens" "The current qualitative study examined the teacher–student interaction and its influence on children’s working memory in primary schools in Belgium and the Netherlands. Eighteen primary school teachers participated in semi-structured interviews focusing on strategies employed to support students with working memory difficulties. The study offered a comprehensive overview of the strategies, categorised into instructional support, classroom organisation, and emotional support (based on the Teaching Through Interactions framework) that teachers use when dealing with working memory-related difficulties. Additionally, it provided unique insights into teachers’ underlying beliefs and rationales about the effectiveness of these strategies. Lastly, factors influencing the use and efficacy of these strategies (based on the Multilevel Supply–Use model) were explored. By integrating teachers’ voices and experiences, this research provides a unique opportunity to bridge theory and practice, and enrich the current understanding and interpretation of the teacher–student interaction and its implications for improving working memory performance in primary school students. Overall, the holistic approach, taking into account both direct and indirect approaches, offered a comprehensive understanding of the multifaceted challenges faced by students with working memory difficulties and the diverse strategies teachers can employ to address them, which can further inform classroom practices, professional development, and policy-making." "Cultural universality and specificity of teacher-student relationship: a qualitative study in Belgian, Chinese, and Italian primary school teachers" "Sophie Pollé, Ruwen Liang, Simona Sankalaitė, Dieter Baeyens" "Extensive evidence highlights the significant influence of dyadic, emotional teacher-student relationship (TSR) on students' cognitive functioning, socio-emotional development, and overall well-being. However, it remains unclear whether the TSR construct and its manifestations can be generalized across cultures. This qualitative study investigated TSR among 60 primary school teachers in Belgium, China, and Italy (i.e., countries with varying positions on the collectivistic-individualistic continuum of culture). Through semi-structured interviews and metatheme analysis, the study examined the similarities and differences in TSR across these countries, revealing a nuanced and diverse picture in various cultural contexts. The findings align with the existing TSR model by including dimensions of closeness, conflict, and dependency, while also extending the model to identify additional dimensions such as authority, balance, distance, fairness, increasing student motivation, patience, and strictness. Regarding cultural perspective, teachers from these three countries exhibited similar conceptualizations of closeness, conflict, fairness, increasing student motivation, patience, and strictness, whereas the conceptualization of dependency, authority, balance, and distance may be influenced by (collectivistic versus individualistic) culture. Moreover, the manifestations of TSR varied across countries, highlighting the influence of cultural factors such as cultural norms, collectivistic versus individualistic values, and the perceived legitimacy of teacher authority. These findings shed light on the complexities of TSR across countries and emphasize the significance of culturally sensitive approaches in fostering positive TSR in education." "Sustained improvements by behavioural parent training for children with attention‐deficit/hyperactivity disorder: A meta‐analytic review of longer‐term child and parental outcomes" "Saskia Van der Oord" "BACKGROUND: Behavioural parent training is an evidence-based intervention for children with attention-deficit/hyperactivity disorder (ADHD), but little is known about the extent to which initial benefits are maintained. AIMS: This meta-analytic review investigated longer-term (i.e., more than 2 months post-intervention) child and parental outcomes of behavioural parent training for children with ADHD. MATERIALS & METHODS: We searched for randomized controlled trials and examined ADHD symptoms, behavioural problems, positive parenting, negative parenting, parenting sense of competence, parent-child relationship quality, and parental mental health as outcomes. We included 27 studies (31 interventions; 217 effect sizes), used multilevel random-effects meta-analyses for between- and within-group comparisons (pre-intervention to follow-up and post-intervention to follow-up), and explored twelve predictors of change. RESULTS: Between pre-intervention and follow-up (M = 5.3 months), we found significant small-to-moderate between-group effects of the intervention on ADHD symptoms, behavioural problems, positive parenting, parenting sense of competence and parent-child relationship quality. Within-group findings show sustained improvements in the intervention conditions for all outcome domains. There were few significant changes from post-intervention to follow-up. Additionally, the large majority of the individual effect sizes indicated sustained outcomes from post-intervention to follow-up. There were seven significant predictors of change in child outcomes, including stronger reductions in ADHD symptoms of girls and behaviour problems of younger children. In contrast with some meta-analyses on short-term effects, we found no differences between masked and unmasked outcomes on ADHD symptoms at follow-up. DISCUSSION & CONCLUSION: We conclude that behavioural parent training has longer-term benefits for children's ADHD symptoms and behavioural problems, and for positive parenting behaviours, parenting sense of competence and quality of the parent-child relationship." "Components of Behavioral Parent Training for Children With Attention-Deficit/Hyperactivity Disorder: A Series of Replicated Single-Case Experiments" "Patrick Onghena, Saskia Van der Oord" "Behavioral parent training (BPT) is an evidence-based treatment for children with attention-deficit/hyperactivity disorder (ADHD). Stimulus control techniques (antecedent-based techniques, e.g., clear rules, instructions) and contingency management techniques (consequent-based techniques, e.g., praise, ignore) are the most common ones that are being taught to parents in BPT. However, research into the additive effects of these techniques is scarce. In this replicated single-case experimental ABC phase design, including six children on stable medication for ADHD (8-11 years) and their parents, the added efficacy of consequent-based techniques on top of antecedent-based techniques was evaluated. After a baseline period (phase A), we randomized the commencement time of two sessions parent training in antecedent-based techniques and two sessions parent training in consequent-based techniques for each child. Children's behaviors were assessed by daily parent ratings of selected problem behaviors and an overall behavior rating. Although visual inspection showed that behavior improved for most children in both phases, randomization tests did not demonstrate the added efficacy of the consequent-based techniques on top of the antecedent-based techniques. Limitations of the study and recommendations for future single-case experiments in this population are discussed." "Sleep parameters and problems in adolescents with and without ADHD: A systematic review and meta‐analysis" "Finja Marten, Lena Keuppens, Dieter Baeyens, Marina Danckaerts, Saskia Van der Oord" "BACKGROUND: Adolescence is characterized by an increase in the rate of sleep problems, which might be even more pronounced in adolescents with ADHD. This systematic review with meta-analysis aimed to compare sleep in adolescents with and without ADHD, including sleep parameters, both subjectively and objectively measured, sleep problems and sleep hygiene. METHODS: Medline, CINAHL, PsycINFO, EMBASE, ERIC, Web of Science, and PubMed databases were searched for studies with case-control designs (published between 1980 and 2022) directly comparing sleep in adolescents (12-25 years) with ADHD to typically developing controls. Standardized mean differences were calculated and a random-effects model was implemented using RevMan. RESULTS: Overall, 6974 titles/abstracts and 205 full texts were screened, resulting in 13 eligible studies. The sample sizes range from 35 to 9846 with in total 2465 adolescents with ADHD and 18,417 controls. The data suggests that adolescents with ADHD report significantly more disturbed subjective sleep parameters (e.g., total sleep time; n = 7, SMD = 0.47, p " "Editorial Perspective: When to start de-implementation of interventions: the case of cognitive training for children with ADHD" "Saskia Van der Oord"