The aim of this study was to verify the moderating effect of the relationship between exposure to violent online media and cyber offending in adolescents. The study utilized information from the 2019 cyber violence survey; data from 3,202 adolescents (mean age = 16.56, SD = 1.71; boys = 1,800, girls = 1,402) were used for the final analysis. The…

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…

Background: Although physical activity can play a positive role in psychosocial development, few studies have longitudinally examined the relationship between physical activity from physical education (PA from PE) and perceived peer acceptance (PPA). Methods: Data from the Korean Children and Youth Panel Survey were used with 1908 elementary…

This study analyzed the responses of Korean students to interest, confidence, value, and instructional clarity in science and mathematics. To achieve this, the raw data of the recent student survey of TIMSS were analyzed. A one-way ANOVA was performed, and a post hoc test was performed. Additionally, a cohort analysis was performed to determine…

The main purpose of this study is to broaden our understanding of the predictors of self-control. We test how two types of strain variables (bullying victimization and grade dissatisfaction) influence the level of self-control during adolescence using three-wave panel data collected from Korean adolescents ranging in age from 14 to 16. We…

Objective: The objective of this study was to investigate the impact of experiencing diverse, multi-dimensional health promotion programmes in school on students' self-reported health status. Design: Cross-sectional design. Methods: We surveyed 2,568 students from 15 middle schools and 15 high schools in Korea between August 2014 and January 2015.…

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…

Based on Hirschi's social control theory (1969), this study examined the relationship between attachment (an element of social bonds) and the onset of substance use among South Korean adolescents. Using discrete-time logistic regression, the study investigated how attachment to parents, teachers, and close friends was associated with the timing of…

Drawing on second language (L2) motivation constructs modelled on Dörnyei's (2009) L2 Motivational Self System, this study explores the relationship between language testing experience and the motivation to learn English among young adolescents (aged 12-15) in South Korea. A 40-item questionnaire was administered to middle-school students (N =…

The aim of this study was to identify smoking cessation failure subgroups among Korean adolescents. Participants were 379 smoking adolescents who joined a smoking cessation program. A questionnaire and a cotinine urine test were administered before the program began. Three months after the program ended, the cotinine urine test was repeated. A…

This article reports on the study of the components of scientific imagination and describes the scales used to measure scientific imagination in Korean elementary and secondary students. In this study, we developed an inventory, which we call the Scientific Imagination Inventory (SII), in order to examine aspects of scientific imagination. We…

The purpose of the present cross-age study with South Korean students was to investigate the relationship of age and years of English-as-a-foreign-language (EFL) exposure with English-reading ability. The main research question was, "Do individuals' age and number of years of English exposure interact in relation to English-reading…

We examined (a) the relative importance of perceived social support from parents, peers, and teachers; (b) the consequences associated with different types of perceived social support; and (c) the mediation by achievement goals in the relationship between perceived social support and academic outcomes. We analyzed the first 3 waves of the Korean…

The purpose of this study was to explore significant variables predicting adolescent suicidal attempts. Socio-environmental variables such as gender, school record, school grade, school adaptation, and family intimacy together with intra-individual variables including depression, anxiety, delinquency, stress, and self-esteem were considered as…

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…