• The Journal of the Korea Contents Association
• /
• v.18 no.11
• /
• pp.298-305
• /
• 2018

This paper explored the impact of adaptive efforts for the 4th Industrial Revolution(hereafter, 4IR) on social cohesion at national level. To examine this relationship, Latent Growth Model was applied to thirty one OECD membership countries, 2006-2015. Adaptive efforts for 4IR was measured by the 4IR Relative Readiness(WEF, 2016) and social cohesion was measured by Corruption Perception Index(Transparency International) and trust on politicians(WEF). Results showed that corruption perception significantly decreased by the 4IR Relative Readiness and legal protection(judiciary independency and corporate ethics) and trust on politicians significantly increased by judiciary independency. These results imply that public and corporate efforts for the 4IR does not necessarily have negative impact on social cohesion as long as legal protection such as judiciary independency and corporate ethics are equally pursuit at national level.

• The Journal of the Korea Contents Association
• /
• v.19 no.5
• /
• pp.178-186
• /
• 2019

Previous studies have shown the significant association between loneliness and game addiction. To determine the causal relationship between them, the present study utilized a series of autoregressive cross-lagged models to early adolescent panel data (N = 346) from KOCCA's Game User Panel Research. Results indicated that loneliness and game addiction, respectively, had relatively strong and stable autoregressive effects across four time points. Also, game addiction at a prior time increased loneliness at a later time, but loneliness was not significantly related to game addiction later in time. These results suggest that game addiction may cause loneliness, not the vice versa.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.16 no.10
• /
• pp.6722-6742
• /
• 2015

This study is intended to look for implications through longitudinal exploratory research on the change of children's problem behaviors for their temperament and parenting behaviors. The results are as follows. The factors influencing children's problem behaviors rose to 62 factors between 1990 and 2000, and 93 factors between 2000 and 2010 from total 41 factors between 1970 and 1990, which they were more than doubled after the 2000s compared with the earlier studies, subdividing children's problem behaviors. The proportion of the factors influencing children's problem behaviors showed that parents' moral thinking had the highest, and their negative thinking or emotion for children were higher than their moral thinking, which their problem behaviors were more greatly affected by parenting attitudes toward them than their own temperament or attitudes. The earlier studies were more likely to find the cause of children's problem behaviors for looking into the factors and causes influencing children's problem behaviors in terms of children's personal mental health, but there was more proportion of social environment, peer and teacher relationship while soaring family, relationship, home environment and child care center environment factors as well as children's personal factors after the 2000s. Consequently, the alternative resources or the environments of the times should be applied in other ways.

• Journal of The Korean Association For Science Education
• /
• v.36 no.4
• /
• pp.629-641
• /
• 2016

Understanding of how teachers change instruction can help predict what kind of educational materials is supportive or appropriate. On the basis of this idea, we explored elementary teachers' PCK progression on specific topics of astronomy: planet size and distance in solar system. To identify the development of PCK over time, we utilized learning progression (LP) as a conceptual framework. The progression of teacher PCK can also be illustrated as the hypothetical pathway from novice to expert like LP. Eight 5th grade elementary teachers participated in this study. We observed participating teachers' astronomy classes with the same topic. In order to document topic-specific PCK of participating teachers, we developed an analytic protocol consisting of four categories: knowledge of curriculum, knowledge of teaching strategies, knowledge of assessment, and astronomical thinking practice. In addition, we monitored the changes in the four participating teachers' PCK for two years in order to validate the evidences of the PCK progression. Participating teachers in this study took some intervention by attending a four-week pre-meeting with the researchers to profile an adaptive instruction. Through this research, we profiled four and five different levels of PCK progressions in three knowledge components (curriculum, teaching strategies, student assessment) and one astronomical thinking practice (systems thinking), respectively. Participating teachers demonstrated various levels and pathways in each component of PCK. This study released the empirical evidences in fostering instructional scaffolding, which is appropriate to the level of PCK of science teachers on specific topic.

• Journal of Digital Convergence
• /
• v.18 no.9
• /
• pp.249-256
• /
• 2020

This study was to identify differences in mortality risk by living arrangements among older adults. We analyzed data from 3,827 older adults who took part in the 2014 Korean Longitudinal Study of Aging. Cox proportional hazards regression was used for data analysis. The significant factors associated with mortality risk in living with others were male, education level, self-rated health, limitation of instrumental activities of daily living, cognitive dysfunction, and depression. The significant factors associated with mortality risk in living alone were regular exercise, limitation of instrumental activities of daily living, and cognitive dysfunction. This study is significant in that it examined whether there are differences between mortality risk by living arrangements. According to the results of this study, nursing intervention should be developed to decrease mortality by living arrangements.

• Journal of the Korean Society for Library and Information Science
• /
• v.57 no.1
• /
• pp.45-68
• /
• 2023

The purpose of this study is to longitudinally analyze impact factors on library use. One of library use indicators, the number of circulated books was statistically analyzed with latent growth model and growth mixture model. Library data from 2014 to 2019 were collected from the National Library Statistics System, and 846 public libraries were analyzed. As results, the number of circulated books were decreased, but it was tempered. Next, with controlling the factor affecting the dependent variable, the size of collection and the number of participants in reading programs provided by public libraries were statistically significant. Lastly, 5 classes were identified by applying the growth mixture model, and the number of librarians was significantly associated with trajectory class membership.

• Journal of the Korean Data and Information Science Society
• /
• v.27 no.4
• /
• pp.1013-1025
• /
• 2016

The purpose of this study was to analyze longitudinal effect of physical education activity (PEA) score on self-rated health evaluation change (SHEC). This study used hierarchical linear and nonlinear models to investigate of the SHEC during the transition into adolescence (from middle school 1st to high school 2nd grade). Using the Korea children and youth panel survey (KCYPA), data were collected over the course of five years (from 2010 and 2014). HLM 6.8 computer program was used to analyze the data. The result were as follows. First, boys' SHEC increased across the five years, and girls' SHEC decreased across the five years. Second, boys' the self-rated health was increased across the three years and decreased across the two years. Third, girls' the self-rated health was increased across the two years and decreased across the three years. Fourth, the PEA score of 1st grade of high school showed a significant positive association with the boys' SHEC. Fifth, the PEA score of 1st grade of middle school showed a significant negative association with the girls' SHEC.

• The Journal of the Korea Contents Association
• /
• v.19 no.12
• /
• pp.593-603
• /
• 2019

The purpose of this study is to analyze the effect of early health status on income status as young old adults grow older. Using Korean Retirement & Income Study(KReiS), this study finally included 923 older adults who were fully present from the first wave (2005) to the sixth wave (2015) for 10 years. The results of descriptive analysis show that the difference of income occurs due to the difference of health status at the early old age. In other words, older adults with good health status at the early old age(56 ~ 60 years old) have a relatively higher income level for 10 years compared with older adults with poor healthy status. In multiple regression analysis, the results represent that the better the health condition in early age, the higher the gross individual income, controlling for gender, spouse, and education level. In addition, older adults with good health at early old age stage have higher income level than those with poor health at early old age stage. The difference by health status continues as they are getting old. Therefore, this study suggests several policies and practical alternatives to improve the early health condition and to reduce the negative impact of early health condition on old age income.

• Journal of the Korean Society for Library and Information Science
• /
• v.45 no.1
• /
• pp.377-393
• /
• 2011

This study aims to investigate trends of internet searching behavior of users of NAVER, a major Korean search portal. In particular, this study analyzed trends of query submission behaviors, behaviors related to typos, multimedia searching behaviors, and click behaviors. In conducting this study, query logs and click logs of unified search service were analyzed. The results of this study show that there were little changes in the topic and length of queries, the pattern of typos, and multimedia seeking behavior over a year's period. However, click counts of documents have gradually increased over time. The results of this study can be implemented to increase the portal's effective development of internet contents and searching algorithms.

• The Journal of Korean Association of Computer Education
• /
• v.19 no.3
• /
• pp.11-19
• /
• 2016

Enhancement of computing education became an international phenominon including South Korea's revised national curriculum 2015. As the enhancement begins to focus on universal computing education, researches to investigate long-term effect of the enhancement is needed. To explore whether the reinforced computing education will bring which long-term impacts, this study investigated university students' experience on computer subject in their secondary schools, and major selection and achievement in a college computing course. As results, there was no statistically significant relation of taking the computer subject per se and major selection and achievement, but significant relation between contents of the subject, and major selection and achievement. This study has limitation on design and results lacking longitudinal data but contributes emphasizing need of longitudinal study to measure long-term effect of enhancement of computing education and providing clues of what impact it would bring.