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Vol.38 No.4

Validation of the Korean Version of the Psychological Violence Scale in Romantic Relationships
Eunji Choi ; Seung-yeon Lee pp.1-25 https://doi.org/10.35574/KJDP.2025.12.38.4.1
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Abstract

This study aimed to validate the Korean version of the Multidimensional Measure of Emotional Abuse-Short Form (MMEA-SF; Maldonado et al., 2020) for unmarried Korean adults in heterosexual relationships. To this end, exploratory and confirmatory factor analyses (N=281 and N=340, respectively) were conducted, resulting in a three-factor structure comprising 14 items: Restrictive Engulfment, Hostile Aggression, and Hostile Withdrawal. Analysis of reliability and criterion and incremental validity indicated that The Korean version of the MMEA-SF (K-MMEA-SF) is a reliable and valid scale to measure psychological dating violence among unmarried Korean adults. The K-MMEA-SF can be utilized as an effective tool to assess various aspects of psychological dating violence, and is expected to contribute to academic development in the field.

Relation between Attachment Anxiety and Relationship Addiction in Emerging Adults: Mediating Effects of Self-Concept Clarity and Intolerance of Uncertainty
Minhee Bang ; Soeun Shim ; Heejae Hwang ; Kyuwon Ham ; Seung-yeon Lee pp.27-48 https://doi.org/10.35574/KJDP.2025.12.38.4.27
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Abstract

The current study examined the mediating roles of self-concept clarity and intolerance of uncertainty in the relationship between attachment anxiety and relationship addiction among 400 emerging adults (aged 19-25). Utilizing structural equation modeling on online-survey data, the results indicated that attachment anxiety negatively predicted self-concept clarity and positively predicted intolerance of uncertainty. Both decreased self-concept clarity and increased intolerance of uncertainty led to an increase in relationship addiction. The findings confirm a double mediation model where attachment anxiety contributes to a higher level of relationship addiction by weakening self-concept clarity and lowering tolerance for uncertain situations. These results offer crucial implications for developing interventions aimed at emerging adults struggling with excessive relational preoccupation.

Fluctuation of Self-efficacy with Performance: Moderating Effect of Mindset
Sujin Woo ; PARK DAEUN pp.49-70 https://doi.org/10.35574/KJDP.2025.12.38.4.49
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Abstract

This study investigated how performance change influences self-efficacy and examined the moderating role of mindset. Study 1, a correlational study, explored associations among class movement experiences, self-efficacy, and mindset in 133 high school students within an ability-grouping educational system. The results indicated that students who moved to a lower-level class reported lower self-efficacy than those who moved to a higher-level class. This effect was significant only among students with a fixed mindset, suggesting a buffering role of a growth mindset. Study 2, an experimental study, assessed the impact of performance feedback on self-efficacy in 204 college students. A decline in perceived performance led to decreased self-efficacy, and mindset served as a marginally significant moderator. These findings underscore the importance of promoting a growth mindset to support students’ adaptive development when faced with academic challenges.

The Effect of Parental Mindfulness on Children’s Peer Competence: The Sequential Mediating Roles of Marital Communication and Children’s Emotion Regulation
Sojin We ; Shin Kyoung Min pp.71-91 https://doi.org/10.35574/KJDP.2025.12.38.4.71
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Abstract

This study examined the effect of parental mindfulness on children’s peer competence through the mediating roles of marital communication and children’s emotion regulation. Participants were 208 parents who were maintaining their marital relationship while raising elementary school-aged children. The findings were as follows. First, children’s emotion regulation mediated the relationship between parental mindfulness and children’s peer competence. Second, marital communication influenced children’s peer competence through the mediating role of children’s emotion regulation. Third, in the pathway from parental mindfulness to children’s peer competence, marital communication and children’s emotion regulation demonstrated sequential mediating effects. Based on these findings, implications for practice, limitations of the study, and directions for future research are discussed.

An Exploratory Study on Parenting Stress among Single-Earner Fathers
Kwon Min Hyuck ; Kim Eunha pp.93-128 https://doi.org/10.35574/KJDP.2025.12.38.4.93
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Abstract

This study explored parenting stress experienced by single-income fathers. An online survey was conducted on 100 fathers raising children aged 6 years or younger who were solely responsible for providing financially for their families without additional income from their partner. Data were analyzed using a modified consensual qualitative research method. Four main stress domains emerged: (1) difficulties in work_family balance, (2) partner relationship and characteristics, (3) daily life changes because of parenting, and (4) relationship and characteristics of children. Fathers of single income families experienced pressure to make a living alone, economic burden, work_family role conflict because of stress at work and ambivalent feelings and frustration such as pity and resentment toward their spouse, difficulty in forming a relationship with a child, and a sense of alienation. Finally, the significance of this study is discussed and suggestions for follow-up studies are made.

Elementary School Children’s Behavioral Inhibition and Depressive Symptoms: Moderated Moderation Effect of Effortful Control and Maternal Rejecting Parenting
Woong Shin ; CHOI EUN SIL pp.129-149 https://doi.org/10.35574/KJDP.2025.12.38.4.129
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Abstract

This study examined the moderated moderation effect of children’s effortful control and maternal rejecting parenting on the link between behavioral inhibition and depression. Data obtained from 302 mothers of elementary school children (grades 1-6) were analyzed using SPSS 23.0 and the PROCESS macro. Results revealed a significant three-way interaction. Under high rejecting parenting, children with low effortful control displayed sharply increased depression as behavioral inhibition increased, whereas those with high effortful control did not differ. Under low rejecting parenting, the interaction between behavioral inhibition and effortful control was nonsignificant. These findings highlight the importance of considering inter-temperamental and temperament-parenting interactions in understanding children’s depression and further suggest that rejecting parenting critically shapes outcomes for temperamentally vulnerable children.

Developmental Trajectories of Early Self-Recognition in Korean Toddlers: Mirror Self-Recognition and Body-Based Self-Recognition
Minji Kim ; Youngon Choi pp.151-170 https://doi.org/10.35574/KJDP.2025.12.38.4.151
초록보기
Abstract

Self-recognition, the ability to understand oneself as an entity distinct from the environment, is considered a major milestone in human development. This study re-examined the developmental trajectory of early self-recognition in Korean infants within current sociocultural contexts, investigating both independent and relational self-recognition. One hundred four infants aged 15-26 months completed mirror self-recognition tasks assessing autonomous self-recognition and Cart self-recognition tasks (Body-as-Obstacle tasks) assessing relational self-recognition between body and objects. Results showed that success rates increased with age on both tasks, with most infants succeeding after 24 months. Success rates for mirror self-recognition were higher than for cart tasks. Unlike Korean infants in the early 2000s, the current sample demonstrated relatively high mirror self-recognition success from 15-17 months onward, exhibiting patterns more similar to those of North American infants. These findings suggest that early self-recognition in Korean infants is emerging more rapidly than in the past, a phenomenon likely associated with sociocultural changes in Korea.

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