2018, Vol.31, No.2

THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY 2023 KCI Impact Factor : 1.67

pISSN : 1229-0718 / eISSN : 2671-6542
https://journal.kci.go.kr/baldal

The present study investigated the characteristics of informants that affect Korean children’s selection of a more reliable source of information with regard to age, gender, and status. Four and five-year-old children were presented with the pictures of two people contrasted in terms of their age, gender, or status. they were then asked who they expected to have more knowledge and which informant they would prefer to ask the name of a novel object. Overall, 5-year-olds selected adults over children, teachers over parents, showing that they consider age and status in their selective trust. By comparison, 4-year-olds were not affected by these characteristics in choosing a knowledgeable informant. Interestingly, while boys selected teachers as a reliable source over parents, girls’s selective trust was not affected by the status of the informant, suggesting that status is a characteristic that boys tend to consider at an earlier age. These results suggest that the informant’s characteristics may affect the development of selective trust differently according to the child’s age and gender, and that Korean children’s development of selective trust may not follow the same developmental pattern as children studied in the US or Europe.

This study examined the influence of anxiety about aging on Subjective Well-Being(SWB) and depression mediated by Future Time Perspective(FTP). Future Time Perspective measured two types: focus on opportunities perspective and focus on limitations perspective. Participants were 325 middle-aged women, aged between 45-64 years, -living in Busan and its surroundings. The results obtained from Process macro analysis developed by Hayes were as follows: First, anxiety about aging predicted less future time perspective focused on opportunity and more future time perspective focused on limitation. Second, the future time perspective focused on opportunity mediated on the relationship between anxiety about aging and subjective well-being after controlling educational level and perceived health state. Finally, the future time perspective focused on limitation mediated on the relationship between anxiety about aging and depression. The results show that two types of future time perspective predicted subjective well-being and depression. It suggests that the future time perspective focused on opportunity will function positively among elderly people.

Developmental changes in cognitive control were examined among 131 children and college students and the relationship between cognitive control and self-regulation was also examined among 96 children. The Eriksen Flanker Task was administered in order to measure cognitive control. Effortful control, emotional regulation, and smart-phone addiction proneness were also measured. The Flanker Interference Effect and Conflict Adaptation Effect were observed in four age groups. The magnitudes of the effects were not different among the age groups. These results suggest that children and college students experience interference from flanker stimuli to the same extent and that they exert top-down control on interference to the same extent. The Flanker Interference Effect and Conflict Adaptation Effect in reaction times were not related to effortful control, emotion regulation and smart-phone addiction proneness. However, the Conflict Adaptation Effect in error rate was positively related to smart-phone addiction proneness.