• Human Ecology Research
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• v.59 no.2
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• pp.233-243
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• 2021

This study examined the longitudinal effects of media usage by early school-age children and of maternal parenting stress on children's school adjustment. The study focused on the mediating effect of executive function difficulty. Longitudinal data to examine the hypothetical model were drawn from the eighth (2015) through tenth (2017) waves of the Panel Study of Korean Children (PSKC) collected by the Korea Institute of Child Care and Education (KICCE). A total of 581 children (293 boys and 288 girls) and their mothers were included. Confirmatory factor analysis, structural equation model, and bootstrapping analysis were applied using SPSS 25.0 and Amos 26.0. The results are as follows. First, no significant correlation was found between early school-age children's media usage and maternal parenting stress. Second, neither media usage by early school-age children nor maternal parenting stress were found to directly affect children's school adjustment. Third, media usage by early school-age children and maternal parenting stress were shown to indirectly affect children's school adjustment via executive function difficulties. In other words, higher levels of media usage by early school-age children and maternal parenting stress during the first grade lead to greater executive function difficulties after a year, which, in turn, lead to a lower level of school adjustment in the third grade. This study indicates the need to develop practical support for the psychological wellbeing of mothers while they are performing their role as a parent and for children in maintaining suitable levels of media usage during early childhood.

• Human Ecology Research
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• v.57 no.3
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• pp.431-444
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• 2019

This study explored the longitudinal developmental paths of preschooler's external problem behaviors from infancy. Subjects consisted of 205 preschoolers (106 boys, 99 girls aged 4) and their mothers recruited for the 2009 in-depth Panel Study on Korean Children. Data were analyzed by descriptive statistics, correlations, and structural equation modeling using SPSS 18.0 (SPSS Co., Chicago, IL, USA), Amos 18.0 (SPSS Co., Chicago, IL, USA). The results were as follows: Maternal depression at preschooler's age 0 had a direct effect on maternal social parenting style at preschooler's age 0. Maternal social parenting style at preschooler's age 0 had a direct effect on preschooler's effortful control at age 1. Preschooler's effortful control at age 1 had a direct effect on preschooler's external problem behaviors at age 4. Marital conflict at preschooler's age 0 did not have a direct effect on preschooler's effortful control at age 1. The direct effects of maternal depression at preschooler's age 0 on preschooler's effortful control at age 1, and on preschooler's external problem behaviors at age 4 were not significant. In addition, direct effect of maternal social parenting style at preschooler's age 0 on preschooler's external problem behaviors at age 4 was not significant. This study showed that maternal psychological characteristics, marital conflict, maternal social parenting style and preschooler's effortful control in infancy should be considered simultaneously to explain the effect on preschooler's external problem behaviors.

• Asian-Australasian Journal of Animal Sciences
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• v.30 no.9
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• pp.1239-1244
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• 2017

Objective: This study was conducted to estimate breed-specific variance components for total number born (TNB), number born alive (NBA) and mortality rate from birth through weaning including stillbirths (MORT) of three main swine breeds in Korea. In addition, the importance of including maternal genetic and service sire effects in estimation models was evaluated. Methods: Records of farrowing traits from 6,412 Duroc, 18,020 Landrace, and 54,254 Yorkshire sows collected from January 2001 to September 2016 from different farms in Korea were used in the analysis. Animal models and the restricted maximum likelihood method were used to estimate variances in animal genetic, permanent environmental, maternal genetic, service sire and residuals. Results: The heritability estimates ranged from 0.072 to 0.102, 0.090 to 0.099, and 0.109 to 0.121 for TNB; 0.087 to 0.110, 0.088 to 0.100, and 0.099 to 0.107 for NBA; and 0.027 to 0.031, 0.050 to 0.053, and 0.073 to 0.081 for MORT in the Duroc, Landrace and Yorkshire breeds, respectively. The proportion of the total variation due to permanent environmental effects, maternal genetic effects, and service sire effects ranged from 0.042 to 0.088, 0.001 to 0.031, and 0.001 to 0.021, respectively. Spearman rank correlations among models ranged from 0.98 to 0.99, demonstrating that the maternal genetic and service sire effects have small effects on the precision of the breeding value. Conclusion: Models that include additive genetic and permanent environmental effects are suitable for farrowing traits in Duroc, Landrace, and Yorkshire populations in Korea. This breed-specific variance components estimates for litter traits can be utilized for pig improvement programs in Korea.

• Journal of Families and Better Life
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• v.28 no.4
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• pp.43-54
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• 2010

This study examines the factors related to university students' positive beliefs about the consequences of maternal employment. A total of 338 university students in Seoul, Gyeong-gi, and Kyungnam area provided information about their socio-economic background, parents' employment history, achievement motivation, and gender egalitarian attitude. A two-way analysis of variance showed significant interaction effects of gender and grade on positive beliefs about the consequences of maternal employment. Multiple regression analyses by gender indicated that factors related with university students' positive beliefs about the consequences of maternal employment may differ by gender. For male students, grade, and socio-cultural gender egalitarian attitude were significantly related to positive beliefs about the consequences of maternal employment. For female students, grade, family monthly income, mother's employment during elementary school, and achievement motivation were related with positive beliefs about the consequences of maternal employment.

• Korean Parent-Child Health Journal
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• v.6 no.1
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• pp.46-58
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• 2003

The purpose of this study is to investigate the effect on maternal perception of her infant and the infant's behavior development through maternal education designed to provide information of the capabilities and the individual characteristics of her infant. The subjects were 48 pairs of normal infants and mothers at three different hospitals, 24 pairs for the intervention group and 24 pairs of the control group. The survey was conducted from July 30 to October 6, 2001. The results of this study were as the following. A maternal perception of her infant was significantly different between the two groups, more positive in the intervention group than in the control group. The information and understanding of behavioral characteristics of the infant are an important factor influencing maternal perception for her infant and general development of the infant. On the basis of these results, the educational intervention method of this study may be worth utilizing in nursing practice. The practitioners of hospitals have to establish a system that it offers an education of understanding the infant's behavioral characteristics during the hospitalization after delivery.

• Korean Journal of Childcare and Education
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• v.16 no.3
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• pp.99-117
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• 2020

Objective: Studies have revealed that parenting is a crucial factor for children's effortful control and externalizing behaviors, however, less is known about the underlying mechanism that may be moderated by maternal depression. Therefore, the present study is aimed to testify the mediating effect of children's effortful control and moderating effect of maternal depression in the association between parenting(i.e. limit setting, overprotective/permissive parenting) and children's externalizing behaviors. Methods: Three hundred and one mothers with 4 to 6 years old children reported their parenting behaviors, depression, their children's effortful control and externalizing behaviors. Data were analyzed using SPSS and Process Macro. Results: Results showed that children's effortful control mediated the association between parenting and children's externalizing behaviors and maternal depression moderated the association between parenting behaviors and children's effortful control as well as between parenting behaviors and children's externalizing behaviors. The moderated mediation effects were stronger among mothers with lower levels of depression. Conclusion/Implications: These findings could contribute to a better understanding of how and when maternal limit setting and overprotective/permissive parenting impact children's externalizing behaviors. It is suggested that future efforts to provide the parenting intervention take a target specific approach (e.g. considering mother's depression symptom), on order to maximize the effectiveness of program to ultimately facilitate children's positive adjustment.

• Journal of Families and Better Life
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• v.27 no.2
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• pp.111-122
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• 2009

The relations of mothers' attitudes regarding maternal employment to mothers' psychological well-being, mothers' parenting sensitivity and children's social competence were examined for mothers who worked full-time (extensively) from age 6 months of their children on, mothers who were not employed, and mothers who worked part-time or inconsistently during their children's early years. Longitudinal observations of 1,034 mothers and children in the NICHD Study of Early Child Care from age one month to first grade were analyzed using structural equation models. As predicted, mothers and children benefited when maternal attitudes were consistent with mother's actual employment status. Among extensively employed mothers, those with positive attitudes about employment had better psychological well-being; among mothers who were not employed, those who believed that maternal employment would have negative consequences for children's development reported better psychological well-being. The findings suggested that whether the mother's status of employment is congruent with their beliefs, not whether the mother is working or not, predicted the mother's well-being and their child's social development.

• Korean Journal of Child Studies
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• v.34 no.4
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• pp.105-123
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• 2013

The purpose of this study was to examine the effects of a child's demographic variables and maternal perceptions of the conditions of happiness on their happiness for mothers. The participants of this study comprised 916 mothers of young children, school-aged children, and adolescents. The results revealed that a child's age and the numbers of children influenced maternal happiness when mothers' demographic variables were controlled. In addition, mothers who exhibited high degree of need in terms of the conditions of happiness regarding existence, relatedness, and growth were more likely to be happy than mothers who exhibited low degree of needs. Finally, the expectations regarding growth, which refers to the pursuit of self-accomplishment and meaning, was the most important predictor of maternal happiness. These findings have implications for parent education programs for mothers of young children, school-aged children, and adolescents.

• Korean Journal of Child Studies
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• v.37 no.3
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• pp.27-38
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• 2016

Objective: This study examined the influence of maternal attachment on adjustment in adolescence and investigated whether paternal attachment had any moderating effects on the relationship between maternal attachment and adjustment in adolescence. Methods: The participants of this study were 300 second graders from two middle schools in Seoul. We measured paternal and maternal attachment as perceived by the participants, adjustment in adolescence through school life adjustment, depression, and relational aggression. The study applied correlation analysis and hierarchical regression analysis suggested by Baron and Kenny (1986). Results: First, participants with high parental attachment showed high levels of school life adjustment, low level of depression, and low levels of relational aggression, demonstrating healthy psycho-social adjustment in adolescence. Second, paternal attachment played a facilitating role in the process of high maternal attachment's positive influence on school life adjustment. Third, paternal attachment mitigated the process of low maternal attachment's negative influence on depression. Conclusion: Our findings highlight the importance of emotional communication, support, and intimacy between parents and children in middle school. Furthermore, it emphasized the importance of the paternal role and involvement in the mother-child relationship.

• The Korean Journal of Community Living Science
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• v.28 no.2
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• pp.301-312
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• 2017

The purpose of this study was to investigate the effect of mother's smartphone dependency and maternal guilty feelings on early childhood emotion regulation. The subjects were 326 mothers of 2 to 5 year olds. Mothers' smartphone dependency was assessed by the Korea Agency for Digital Opportunity & Promotion(2006), guilty feelings by the Maternal Guilt Scale(Sung 2011), and early childhood emotion regulation assessed by the ERC(Park 2012). The results of the study were as follows. First, mother's dependency on smartphones was highly related with early childhood emotion regulation. Maternal guilty feelingswere weakly related with child's emotion regulation. Relationship between mother's dependency on smartphones and maternal guilty feelingswasmoderate. Second, mother's positive expectations towardssmartphones and maternal guilty feelings from negative parenting behavior explained early childhood emotion regulation as much as 69%.