Patrick W. L. Leung

ORCID: 0000-0002-0415-0124
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About
Contact & Profiles
Research Areas
  • Child and Adolescent Psychosocial and Emotional Development
  • Attention Deficit Hyperactivity Disorder
  • Early Childhood Education and Development
  • Autism Spectrum Disorder Research
  • Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Maternal Mental Health During Pregnancy and Postpartum
  • Cognitive Abilities and Testing
  • Mental Health Research Topics
  • Mental Health Treatment and Access
  • Child Nutrition and Feeding Issues
  • Schizophrenia research and treatment
  • Neural and Behavioral Psychology Studies
  • Cultural Differences and Values
  • Digital Mental Health Interventions
  • Genetics and Neurodevelopmental Disorders
  • Bipolar Disorder and Treatment
  • Infant Health and Development
  • Second Language Learning and Teaching
  • Suicide and Self-Harm Studies
  • Traumatic Brain Injury Research
  • Family and Disability Support Research
  • Sleep and related disorders
  • EFL/ESL Teaching and Learning
  • Functional Brain Connectivity Studies
  • Reading and Literacy Development

Chinese University of Hong Kong
2016-2025

Adama Science and Technology University
2022

University of Houston
1999-2021

University of Hong Kong
1996-2020

Northern Hospital
2018

University of Pennsylvania
2018

Northern Health
2017

Memorial Medical Center
2014

The University of Melbourne
1996

Psychiatry Research Trust
1996

There is a growing need for multicultural collaboration in child mental health services, training, and research. To facilitate such collaboration, this study tested the 8-syndrome structure of Child Behavior Checklist (CBCL) 30 societies. Parents' CBCL ratings 58,051 6- to 18-year-olds were subjected confirmatory factor analyses, which conducted separately each society. Societies represented Asia; Africa; Australia; Caribbean; Eastern, Western, Southern, Northern Europe; Middle East; North...

10.1080/15374410701444363 article EN Journal of Clinical Child & Adolescent Psychology 2007-07-17

This study compared parents' ratings of behavioral and emotional problems on the Child Behavior Checklist (Achenbach, 1991;Achenbach & Rescorla, 2001) for general population samples children ages 6 to 16 from 31 societies ( N = 55,508). Effect sizes society ranged .03 .14. gender were ≤ .01, with girls generally scoring higher Internalizing boys Externalizing problems. age .01 varied across types problems.Total Problems scores 19 within 1 SD overall mean 22.5. Bisociety correlations item...

10.1177/10634266070150030101 article EN Journal of Emotional and Behavioral Disorders 2007-07-01

We used population sample data from 25 societies to answer the following questions: (a) How consistently across do adolescents report more problems than their parents about them? (b) Do levels of parent-adolescent agreement vary among for different kinds problems? (c) well and in agree on problem item ratings? (d) much dyads within each society (e) adolescent's deviance status? five methods test cross-informant ratings obtained 27,861 ages 11 18 parents. Youth Self-Report (YSR) mean scores...

10.1080/15374416.2012.717870 article EN Journal of Clinical Child & Adolescent Psychology 2013-03-01

As a basis for theories of psychopathology, clinical psychology and related disciplines need sound taxonomies that are generalizable across diverse populations. To test the generalizability statistically derived 8-syndrome taxonomic model youth confirmatory factor analyses (CFAs) were performed on Youth Self-Report (T. M. Achenbach & L. A. Rescorla, 2001) completed by 30,243 youths 11-18 years old from 23 societies. The met criteria good fit to data each society. This was consistent with...

10.1037/0022-006x.75.5.729 article EN Journal of Consulting and Clinical Psychology 2007-01-01

Background: Psychometric properties of the Chinese version CBCL, TRF, and YSR were understudied. This study aimed at examining their test–retest reliability criterion validity. Methods: Three community clinic samples recruited in Hong Kong. The parents, teachers, youths respectively completed YSR. Results: reliable valid. However, there was score/case attenuation retest. CBCL TRF appeared to screen externalizing ADHD problems better, while screened internalizing better. Conclusions:...

10.1111/j.1469-7610.2005.01570.x article EN Journal of Child Psychology and Psychiatry 2006-01-30

Abstract International comparisons were conducted of preschool children's behavioral and emotional problems as reported on the Child Behavior Checklist for Ages 1½–5 by parents in 24 societies (N = 19,850). Item ratings aggregated into scores syndromes; Diagnostic Statistical Manual Mental Disorders–oriented scales; a Stress Problems scale; Internalizing, Externalizing, Total scales. Effect sizes scale score differences among ranged from small to medium (3–12%). Although differed greatly...

10.1080/15374416.2011.563472 article EN Journal of Clinical Child & Adolescent Psychology 2011-04-29

Parent–teacher cross-informant agreement, although usually modest, may provide important clinical information. Using data for 27,962 children from 21 societies, we asked the following: (a) Do parents report more problems than teachers, and does this vary by society, age, gender, or type of problem? (b) Does parent–teacher agreement across different problem scales societies? (c) How well do teachers in societies agree on item ratings? (d) much dyads within-dyad items? (e) whether child's...

10.1080/15374416.2014.900719 article EN Journal of Clinical Child & Adolescent Psychology 2014-04-30

Breastfeeding is associated with numerous health benefits to offspring and mothers may improve maternal-infant bonding. Ample evidence suggests breastfeeding can child neurodevelopment, but more research needed establish whether linked the development of psychopathology. This paper aims explore effects both mother-child interactions on behavioral outcomes at a later age. Children from China Jintan Child Cohort Study (N = 1267), age six years old were assessed, along their parents. who...

10.3390/nu6010076 article EN Nutrients 2013-12-24

Background This study was undertaken to examine the validity of different diagnostic definitions hyperactivity in a Chinese population. Estimates prevalence were made according these definitions. Method In two-stage epidemiological Hong Kong, 3069 schoolboys screened by questionnaires; and stratified sample 611 them entered second stage for more detailed assessment. Results Children with hyperkinetic disorder (ICD–10) or ADDH (DSM–III) both displayed significant hyperactive symptoms, but...

10.1192/bjp.168.4.486 article EN The British Journal of Psychiatry 1996-04-01

10.1300/j407v15n04_06 article EN Computers in Human Services 1999-04-22

This study examined the developmental differences, components, and underlying factor structure of executive functioning (EF) in school-aged children by utilizing subtests from Test Everyday Attention for Children some additional EF tests. The differences identified across age groups between 7 to 14 years a sample 185 support multistage interpretation development. Structural equation modeling was used test models with three first-order components which included shifting, working...

10.1080/87565641.2010.549979 article EN Developmental Neuropsychology 2011-03-31

To conduct international comparisons of parent–adolescent cross-informant agreement in clinical samples, we analyzed ratings on the Child Behavior Checklist (CBCL) and Youth Self-Report (YSR) for 6,762 clinically referred adolescents ages 11–18 from 7 societies (M = 14.5 years, SD 2.0 years; 51% boys). Using CBCL YSR data, asked following questions: (a) Do parents report more problems their adolescent children than about themselves? (b) How do correlations (rs) scale scores differ by problem...

10.1080/15374416.2016.1266642 article EN Journal of Clinical Child & Adolescent Psychology 2017-01-02

Children with attention-deficit hyperactivity disorder (ADHD) have difficulties executive function and impulse control which may improve age.To map the brain correlates of in ADHD determine age-related changes reaction times volumes.Attention-deficit groups were compared on change task measures response inhibition (stop signal time, SSRT) shifting (change CRRT). Voxel-wise magnetic resonance imaging (MRI) correlations grey matter volume determined, along bivariate times, volumes...

10.1192/bjp.bp.108.051359 article EN The British Journal of Psychiatry 2009-01-30

AbstactThis study compared teachers' ratings of behavioral and emotional problems on the Teacher's Report Form for general population samples in 21 countries (N = 30,957). Correlations between internal consistency coefficients different averaged .90. Effects country scale scores ranged from 3% to 13%. Gender effects <1% 5%, age were all <1%. With great across countries, higher boys than girls eight scales: Total Problems; Externalizing; Attention Problems, Rule-Breaking Behavior, Aggressive...

10.1080/02796015.2007.12087954 article EN School Psychology Review 2007-03-01

Standardized assessment instruments developed in one society are often used other societies. However, it is important to determine empirically how function others. The present study tested the fit of Teacher's Report Form syndrome structures 20 diverse societies using data for 30,030 6- 15-year-old students from Asia; Australia; Caribbean; eastern, western, southern, and northern Europe; Middle East. A correlated seven-syndrome model a hierarchical Attention Problems were separately each via...

10.1080/02796015.2007.12087934 article EN School Psychology Review 2007-09-01

The China Jintan Child Cohort study began in 2004 with 1656 pre-school participants and a research focus on studying the impact of environmental exposures, such as lead, children's neurobehavioural outcomes. This population cohort now includes around 1000 original participants, who have been assessed three times over period 10 years. Since IJE profile publication 2010, experienced critical developmental transition from to school age then adolescence. has also witnessed an increase breadth...

10.1093/ije/dyv119 article EN International Journal of Epidemiology 2015-08-31

Research is needed to determine the extent which internet-delivered psychological therapies are effective when delivered in countries and cultures outside of where they were developed.

10.1016/j.invent.2022.100539 article EN cc-by Internet Interventions 2022-04-01
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