Acknowledgement
This work was supported by the Ministry of Education of the Republic of Korea and the National Research Foundation of Korea (NRF-2020S1A5B8100993).
References
- M. M. Jo & Y. M. Park. (2014). The effects of smartphone addiction prevention activities on mothers with young children. Korean Journal of Early Childhood Education, 34(5), 347-368. https://doi.org/10.18023/kjece.2014.34.5.016
- M. K. Byun. (2020). Development of Toddler's Smartphone Flow State Scale : ㅋParent Report Foam. Doctoral dissertation. Korea University, Seoul.
- B. J. Kang & Y. S. Paik. (2019). An analysis on the young children behavioral patterns by smart device usage-time. Korean Association For Learner-Centered Curriculum And Instruction, 19(21), 597-620. DOI : 10.22251/jlcci.2019.19.21.597
- J. S. Kim. (2017). Understanding Early Childhood Addiction. Seoul : The Ant and the Grasshopper.
- J. F. Maddux & D. P. Desmond. (2000). Addiction or dependence. Addiction. 95(5), 661-665. https://doi.org/10.1046/j.1360-0443.2000.9556611.x
- M. N. Potenza, (2006). Should addictive disorders include non-substance-related conditions, Addiction. 101(1), 142-151. https://doi.org/10.1111/j.1360-0443.2006.01591.x
- M. Y. Seo & E. M. Lim. (2010). Infants' and low-grade elementary students' internet game addiction tendency and the relationship between game addiction tendency and personality characteristics. The Journal of Child Education, 19(4), 163-175.
- J. H. Moon, et al. (2019). Smart device usage in early childhood is differentially associated with fine motor and language development. Acta Paediatrica, 108(5), 903-910. DOI: 10.1111/apa.14623
- J. A. Hwang & S. J. Kim. (2016). The Analysis of Research Trend about Utilization of Electronic Media in Early Childhood Education - based on Smart Device - . Journal of Korea Academia-Industrial cooperation Society, 17(5), 470-477. DOI : 10.5762/KAIS.2016.17.5.470
- M. J. Woo, Y. Tao & M. J. Lim. (2018). Research Trends in Early Childhood Smart Education in Korea and the United States: An Analysis of Journal Articles. The Journal of Learner-Centered Curriculum and Instruction, 18(23), 23-52. DOI : 10.22251/jlcci.2018.18.23.23
- Y. H. Kim, J. H. Jeong & H. A. Lee. (2015). Analysis of Research Trends on Using Smart Devices for Children: focusing on perspective of side effects. Korean Journal of Child Care and Education Policy, 9(2), 1-23. UCI : G704-SER000002260.2015.9.2.007 https://doi.org/10.1007/s40723-014-0004-5
- S. J. Kim & I. J. Jeong. (2016). The Effects of Computer, Video Game, Smartphone Use on the Depression/Anxiety and Aggression of Preschool Children. Journal of Korean Council for Children and Rights, 20(2), 157-176. DOI : 10.21459/kccr.2016.20.2.177
- Y. L. Lee & E. H. Ha. (2017). The Differences of ADHD Symptoms according to the Time spent Using Smart Devices and the Level of Smart Device Addiction among Toddlers. Korean Journal of Play Therapy. 20(1), 65-80. DOI : 10.17641/KAPT.20.1.4
- K. Krippendorff. (2004). Reliability in content analysis. Human communication research, 30(3), 411-433. https://doi.org/10.1093/hcr/30.3.411
- S. H. Lee. (2007). Methodological Review of Content Analysis Applied to the Public Administration Studies. Korean Institute of Public Affairs, 45(2), 1-23.
- S. T .Kim. (2005). A meta analysis of content analysis research in Korea : Focusing on methodological elements for better content analysis research. Communication Theories, 1(2), 39-67. UCI : G704-SER000009172.2005.1.2.003
- S. Y. Kim & T. J. Choi. (2007). Educational Research Methodology. Seoul : Hakjisa.
- S. Hwang & J. Hwang. (2016). An Analysis of Research Trends on Smart Devices for Young Children : Focusing on Domestic Theses, Dissertations and Articles. Early Childhood Education Research & Review, 20(3), 299-317. UCI : G704-000814.2016.20.3.002
- K. A. Lee & E. Y. Park. (2018). The Study of the System Development on the Safe Environment of Children's Smartphone Use and Contents Recommendations. Digital Contents, 19(5), 845-852. DOI : 10.9728/dcs.2018.19.5.845
- E. J. Hyun, Y. M. Park, M. M. Jo & T. Y. Kim. (2013). Relationship among mothers' smartphone addiction levels, maternal depression and young children's problem behaviors. Korean Journal of Early Childhood Education, 33(5), 181-205. DOI : 10.18023/kjece.2013.33.5.008
- J. A. Park & E. J. Hyun. (2018). Analysis on the Structural Relationships of Young Children's Smartphone Overdependence, Young Children's Aggression, Mothers' Parenting Stress, and Mothers' Smartphone Addiction Tendency. Journal of Children's Literature and Education, 19(2), 219-248. https://doi.org/10.22154/JCLE.19.2.9
- S. K. Kang, et al. (2020). The Development of Korean Healing Model "K-LIFE" of Four Addiction. Paju : Korean Academic Information.