Browsing Institutt for spesialpedagogikk by Author "Zachrisson, Henrik Daae"

Now showing items 1-20 of 30

  • A gentle introduction to instrumental variables 
    Widding-Havneraas, Tarjei; Zachrisson, Henrik Daae (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Instrumental variables (IV) is a central strategy for identifying causal effects in absence of randomized experiments. Clinicians and epidemiologists may find the intuition of IV easy to grasp by comparison to randomized ...
  • A population-wide gene-environment interaction study on how genes, schools, and residential areas shape achievement 
    Gillespie Cheesman, Rosa Catherine; Borgen, Nicolai Topstad; Lyngstad, Torkild Hovde; Eilertsen, Espen Moen; Ayorech, Ziada; Torvik, Fartein Ask; Andreassen, Ole; Zachrisson, Henrik Daae; Ystrøm, Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract A child’s environment is thought to be composed of different levels that interact with their individual genetic propensities. However, studies have not tested this theory comprehensively across multiple environmental ...
  • Adult outcomes of sustained high-quality early child care and education: Do they vary by family income? 
    Bustamante, Andres S.; Dearing, Eric Curtis; Zachrisson, Henrik Daae; Vandell, Deborah Lowe (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)
    Experimental research demonstrates sustained high-quality early care and education (ECE) can mitigate the consequences of poverty into adulthood. However, the long-term effects of community-based ECE are less known. Using ...
  • Boys with overweight status lagged behind girls with overweight status in reading: evidence from mendelian randomization 
    Yu, Baeksan; Zachrisson, Henrik Daae; Cheesman, Rosa Catherine Gillespie; Ystrøm, Eivind; Nes, Ragnhild Bang (Journal article / Tidsskriftartikkel / SubmittedVersion, 2023)
    Objectives We investigated the relationship between childhood weight status and academic achievement across sexes and different school subjects in Norway. Study Design and Setting We used data from the Norwegian ...
  • Can Pre-Academic Activities in Norway’s Early Childhood Education and Care Program Boost Later Academic Achievements in Preschoolers at Risk? 
    Zambrana, Imac Maria; Ogden, Terje; Zachrisson, Henrik Daae (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Low academic achievements are predicted by early disadvantages. Because achievement gaps typically escalate with age, early efforts to prevent future academic disadvantages are called for. The current study examines whether ...
  • Causal modelling of variation in clinical practice and long-term outcomes of ADHD using Norwegian registry data: The ADHD controversy project 
    Mykletun, Arnstein; Widding-Havneraas, Tarjei; Chaulagain, Ashmita; Lyhmann, Ingvild; Bjelland, Ingvar; Halmøy, Anne; Elwert, Felix; Butterworth, Peter; Markussen, Simen; Zachrisson, Henrik Daae; Rypdal, Knut (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Introduction Attention-deficit/hyperactivity disorder (ADHD) is among the most common mental disorders in children and adolescents, and it is a strong risk factor for several adverse psychosocial outcomes over the lifespan. ...
  • Childhood personality and academic performance: A sibling fixed-effects study 
    Constantinou, Andrea; von Soest, Tilmann Martin; Zachrisson, Henrik Daae; Torvik, Fartein Ask; Cheesman, Rosa Catherine Gillespie; Ystrøm, Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract Objective This study investigated the associations between personality traits at age 8 and academic performance between ages 10 and 14, controlling for family confounds. Background Many studies have shown links ...
  • Do increases in national-level preschool enrollment increase student achievement? Evidence from international assessments 
    Strietholt, Rolf; Hogrebe, Nina; Zachrisson, Henrik Daae (Journal article / Tidsskriftartikkel / SubmittedVersion, 2020)
    The main purpose of the study is to analyze whether globally observed trends towards preschool expansion have impacted student achievement in primary and secondary school. We use data from multiple study cycles of two ...
  • Do more hours in center-based care cause more externalizing problems? A cross-national replication study 
    Rey-Guerra, Catalina; Zachrisson, Henrik Daae; Dearing, Eric Curtis; Berry, Daniel; Kuger, Susanne; Burchinal, Margaret R.; Nærde, Ane; van Huizen, Thomas; Côté, Sylvana M. (Journal article / Tidsskriftartikkel / SubmittedVersion, 2023)
    Whether high quantities of center-based care cause behavior problems is a controversial question. Studies using covariate adjustment for selection factors have detected relations between center care and behavior problems, ...
  • Early Maternal Spatial Support for Toddlers and Math Skills in Second Grade 
    Ribeiro, Luisa Jacinta Feio Antunes; Casey, Beth; Dearing, Eric Curtis; Nordahl, Kristin B.; Aguiar, Cecilia; Zachrisson, Henrik Daae (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    The aim of this study is to investigate whether maternal spatial support during two types of joint manipulative toy play tasks with 2-year-old children was longitudinally associated with math screening test scores in second ...
  • Effect of ADHD medication on risk of injuries: a preference-based instrumental variable analysis 
    Widding-Havnerås, Tarjei; Elwert, Felix; Markussen, Simen; Zachrisson, Henrik Daae; Lyhmann, Ingvild; Chaulagain, Ashmita; Bjelland, Ingvar; Halmøy, Anne; Rypdal, Knut; Mykletun, Arnstein (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract ADHD is associated with an increased risk of injury. Causal evidence for effects of pharmacological treatment on injuries is scarce. We estimated effects of ADHD medication on injuries using variation in provider ...
  • Effect of Pharmacological Treatment of Attention-Deficit/Hyperactivity Disorder on Criminality 
    Widding-Havnerås, Tarjei; Zachrisson, Henrik Daae; Markussen, Simen; Elwert, Felix; Lyhmann, Ingvild; Chaulagain, Ashmita; Bjelland, Ingvar; Halmøy, Anne; Rypdal, Knut; Mykletun, Arnstein (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Objective Criminality rates are higher among persons with attention-deficit/hyperactivity disorder (ADHD), and evidence that medication reduces crime is limited. Medication rates between clinics vary widely even within ...
  • Geographical variation in ADHD: do diagnoses refect symptom levels? 
    Widding-Havneraas, Tarjei; Markussen, Simen; Elwert, Felix; Lyhmann, Ingvild; Bjelland, Ingvar; Halmøy, Anne; Chaulagain, Ashmita; Ystrøm, Eivind; Mykletun, Arnstein; Zachrisson, Henrik Daae (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract Rates of ADHD diagnosis vary across regions in many countries. However, no prior study has investigated how much within-country geographic variation in ADHD diagnoses is explained by variation in ADHD symptom ...
  • How interactions between ADHD and schools affect educational achievement: a family-based genetically sensitive study 
    Gillespie Cheesman, Rosa Catherine; Eilertsen, Espen Moen; Ayorech, Ziada; Borgen, Nicolai Topstad; Andreassen, Ole A.; Larsson, Henrik; Zachrisson, Henrik Daae; Torvik, Fartein Ask; Ystrøm, Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Background Children with ADHD tend to achieve less than their peers in school. It is unknown whether schools moderate this association. Nonrandom selection of children into schools related to variations in their ADHD ...
  • Is Parent-Teacher Cooperation in the First Year of School Associated with Children's Academic Skills and Behavioral Functioning? 
    Cook, Kyle DeMeo; Dearing, Eric; Zachrisson, Henrik Daae (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    The importance of parent engagement in children’s schooling is well documented, yet there is limited research on the quality of parent–teacher relationships specifically. In the present study, we aimed to help build knowledge ...
  • Maternal perinatal and concurrent depressive symptoms and child behavior problems: a sibling comparison study 
    Gjerde, Line C.; Eilertsen, Espen Moen; Reichborn-Kjennerud, Ted; McAdams, Tom A.; Zachrisson, Henrik Daae; Zambrana, Imac Maria; Røysamb, Espen; Kendler, Kenneth S.; Ystrøm, Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Background: Previous studies have found significant associations between maternal prenatal and postpartum depression and child behavior problems (CBP). The present study investigates whether associations remain in a ...
  • Mechanisms linking parental educational attainment with child ADHD, depression, and academic problems: a study of extended families in The Norwegian Mother, Father and Child Cohort Study 
    Torvik, Fartein Ask; Eilertsen, Espen Moen; McAdams, Tom A.; Gustavson, Kristin; Zachrisson, Henrik Daae; Brandlistuen, Ragnhild Eek; Gjerde, Line C.; Havdahl, Alexandra; Stoltenberg, Camilla; Ask, Helga; Ystrøm, Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Background Low educational attainment in parents is associated with child psychopathology. It is not clear whether the associations are due to risk factors that family members share or due to effects of maternal or ...
  • Parenting quality from observational ratings at age 2: validation from Norwegian and U.S. Samples 
    Nordahl, Kristin B.; Owen, Margaret Tresch; Ribeiro, Luisa Jacinta Feio Antunes; Zachrisson, Henrik Daae (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    This study investigated the construct validity of a proposed measure of parenting quality derived from extensively used observational ratings of parenting in mother-child interaction procedures with 2-year-olds in two large ...
  • Peer Effects on Aggressive Behavior in Norwegian Child Care Centers 
    Ribeiro, Luisa Jacinta Feio Antunes; Zachrisson, Henrik Daae (Journal article / Tidsskriftartikkel / SubmittedVersion, 2019)
    This study examined whether exposure to changes in peer aggression predicted changes in child physical aggression (PA) in preschool children attending Norwegian Early Childhood Education and Care (ECEC) centers. Data from ...
  • Predicting selection into ECEC of higher quality in a universal context:The role of parental education and income 
    Alexandersen, Nina; Zachrisson, Henrik Daae; Wilhelmsen, Tiril; Wang, Mari Vaage; Brandlistuen, Ragnhild Eek (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    There is consensus about the positive effects of high quality Early Childhood Education and Care (ECEC) on children’s development, particularly for children from lower socioeconomic backgrounds. However, limited knowledge ...