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Direct linkNam, Su-Jung – Journal of Early Adolescence, 2021
Cyber delinquency in adolescence is a particular area of concern for psychologists owing to its association with several mental health issues and its potential link with offline delinquency. This longitudinal study examined the stability of changes and directions of influence in adolescents' cyber delinquency, aggression, and offline delinquency…
Descriptors: Delinquency, Aggression, Computer Mediated Communication, Adolescents
Download full textShakeel, M. Danish; Peterson, Paul E. – Program on Education Policy and Governance, 2021
Principals (policy makers) have debated the progress in U.S. student performance for a half century or more. Informing these conversations, survey agents have administered seven million psychometrically linked tests in math and reading in 160 waves to national probability samples of selected cohorts born between 1954 and 2007. This study is the…
Descriptors: Academic Achievement, Socioeconomic Status, Race, Ethnicity
Chu, Hye-Eun; Treagust, David F.; Yeo, Shelley; Zadnik, Marjan – International Journal of Science Education, 2012
The aims of this study were to determine the underlying conceptual structure of the thermal concept evaluation (TCE) questionnaire, a pencil-and-paper instrument about everyday contexts of heat, temperature, and heat transfer, to investigate students' conceptual understanding of thermal concepts in everyday contexts across several school years and…
Descriptors: Questionnaires, Foreign Countries, Scientific Concepts, Heat
Ha, Yeongmi; Choi, Eunsook; Seo, Yeongmi; Kim, Tae-gu – Journal of School Health, 2013
Background: This study identified relationships among subjective social status (SSS), weight perception, weight control behaviors, and weight status in Korean adolescents using nationally representative data collected from the 2009 Korea Youth Risk Behaviors Web-Based Survey. Methods: Data from 67,185 students aged 12-18 years were analyzed.…
Descriptors: Social Status, Body Weight, Self Concept, Health Behavior
Park, Sunhee – Suicide and Life-Threatening Behavior, 2013
This study explores the trajectory of suicidal ideation in childhood and adolescence and identifies its strong predictors. Secondary data obtained from two nationally representative cohorts of South Korean youth were longitudinally analyzed using frequencies, percentages, and discrete time survival analysis. This study revealed an increase in the…
Descriptors: Suicide, At Risk Persons, Children, Adolescent Attitudes
Mohan, Lindsey; Chen, Jing; Anderson, Charles W. – Journal of Research in Science Teaching, 2009
This study reports on our steps toward achieving a conceptually coherent and empirically validated learning progression for carbon cycling in socio-ecological systems. It describes an iterative process of designing and analyzing assessment and interview data from students in upper elementary through high school. The product of our development…
Descriptors: National Standards, Climate, High School Students, Elementary School Students
Jang, Keum Seong; Hwang, Seon Young; Choi, Ja Yun – Journal of School Health, 2008
Background: The aims of this study were to identify the independent factors associated with intermittent addiction and addiction to the Internet and to examine the psychiatric symptoms in Korean adolescents when the demographic and Internet-related factors were controlled. Methods: Male and female students (N = 912) in the 7th-12th grades were…
Descriptors: Junior High School Students, High School Students, Substance Abuse, Intervention
