This study aimed to provide a deeper understanding of high school students' errors while solving genetics problems. Four students were asked to solve two genetics problems and participate in a modified think-aloud interview. Data from the interview, video clips of the problem-solving process, and test sheets were used to analyse participants'…

This study examines the role of shadow education as a contributor to educational inequality in South Korea. Using data from the Korean Educational Longitudinal Study (KELS), this paper analyzes the effects of private tutoring at 10th and 12th grade level on College Scholastic Aptitude Test (CSAT) scores. We reduce biases in prior research by using…

Background: Despite extensive research examining features of adolescents' ego-identity development, little research has demonstrated patterns of ego-identity development and its relationship with various individual and environmental factors that are theoretically important for identity development. Objective: The current study investigated…

Adolescence is a universal developmental stage where many changes occur (i.e., biological, social, and psychological) during the second decade of life. Emerging adulthood a subsequent development period between adolescence and young adulthood; during emerging adulthood individuals go through various transitions such as academic and career…

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…

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…

The characteristics of and risk factors associated with binge drinking among South Korean and American adolescents were identified in this study. Data on adolescents in the 9th to 12th grades were extracted from two nationwide data sets: the Korea Youth Risk Behavior Web-based Survey System and the U.S. Youth Risk Behavior Surveillance System.…

The purpose of this study was to examine the longitudinal causal relationship among Korean students' past academic performance, self-efficacy beliefs, and academic achievement. The study used an autoregressive cross-lagged model to assess the casual ordering of self-efficacy beliefs and academic achievement in a representative sample of 1177…

This report is the third in a series considering career-readiness features within high school assessments. The goal of this study was to explore international comparisons by applying feature analysis to Korean assessment items. Twenty math test items from the Gyeonggi Province in South Korea along with performance data from roughly 4,000 Grade 12…

The purpose of this study was to examine factors associated with career preparation of high school students in four countries: China, Japan, South Korea, and the United States. The human bioecological theory was used as a framework to examine personal, process, and context factors associated with career preparation of the adolescents. Data were…

Since 2005, open educational resources (OER) have played a key role in K-12 education in South Korea; so far, however, there has been little discussion about OER efficacy in South Korean K-12 education. In the meantime, South Korean education has been attracting a lot of interest around the world. Former U.S. President Obama's comments about South…