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Marcus, David K.; Fulton, Jessica J.; Clarke, Erin J. – Journal of Clinical Child and Adolescent Psychology, 2010
This meta-analysis examined the association between conduct problems and lead exposure. Nineteen studies on 8,561 children and adolescents were included. The average "r" across all 19 studies was 0.19 (p less than 0.001), which is considered a medium effect size. Studies that assessed lead exposure using hair element analysis yielded…
Descriptors: Poisoning, Effect Size, Meta Analysis, Children
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Piek, Jan P.; Bradbury, Greer S.; Elsley, Sharon C.; Tate, Lucinda – International Journal of Disability, Development and Education, 2008
School-age children with movement problems such as Developmental Coordination Disorder (DCD) are known to have social and emotional difficulties. However, little research has investigated younger children to determine whether these problems emerge at school age or are present earlier. The aim of the current study was to investigate the…
Descriptors: Social Behavior, Emotional Response, Physical Disabilities, Correlation