Korean Journal of Psychology: General
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- P-ISSN1229-067X
- E-ISSN2734-1127
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ISSN : 1229-067X
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Vol.40 No.2
Abstract
Using regression equation for short forms of intelligence scales tends to cause over-estimation of the IQ especially for those who have lower intelligence. Such an systematic error in IQ estimation threats the validity of intelligence scale short form. The current study aims to resolve the problem by proposing new way of correction based on RTM amount formula by Davis(1976). To do so, this study compared the accuracies of proration method, linear equating method, regression formula method, regression equation correction by Ehrler et al.(2019) with our correction proposal. Two homogeneous low intelligent groups and a heterogeneous clinical group were tested. As results, the proposed correction method showed better accuracy over regression formula method, better validity over proration method and linear equating method, and more generally applicable over Ehrler et al.(2019)’s correction. The proposed correction method successfully reduced the systematic error of over-estimation for lower intelligence.
Abstract
This study was conducted to define the just gender equality experienced or perceived by an individual in adults and to develop a reliable and valid scale to measure it in the workplace. Based on the belief in a just world, four factors for gender equality were assumed and 53 questions were produced to measure them, and 46 preliminary questions were selected through content validity verification by related experts. In the first verification, reliability analysis and exploratory factor analysis were performed on the data collected for 112 adults, and 22 items that corresponded to the four sub-areas were confirmed. In the second verification, a survey was conducted on 250 employees in their 20s to 40s, and confirmatory factor analysis, reliability verification, and validity verification were conducted through the collected data. The analysis found that the measure was reasonable to consist of 22 questions in four factors: Distributive justice to gender equality for self(DJGE-self), Distributive justice to gender equality for others(DJGE-others), Procedural justice to gender equality for self(PJGE-self), Procedural justice to gender equality for others(PJGE-others). The internal consistency of each sub-factor was, .83∼.92, showing high reliability, and the test-retest reliability (n=42) showed a correlation coefficient of .52~.85, indicating that it has temporal stability. To confirm the validity, correlation analysis was conducted with Belief in a Just World Scale, Center for Epidemiological Studies-Depression Scale, Korean Gender Egalitarianism Scale(vocational factor), and significant correlations with all scales were reported. To confirm the measurement model, confirmatory factor analysis was conducted and a good fit was found. Sub-elements and item composition, implications for the verification process, limitations of the study, and suggestions for future research were discussed.
Abstract
The current study examines the relationship between parental overprotection and prosocial behavior of undergraduate students, and how the contextual variables such as message framing and dilemma repetition affect the relationship. For this purpose, A total of 145 participants were determined as either parental overprotection group or non-overprotection group based on the Korean-Parental Overprotection Scale(K-POS) scores. Then, an experimental paradigm called ‘public goods game’ was conducted to measure prosocial behavior in context similar to the actual situation where dilemma occurs. In ‘public goods game,’ participants were presented with message that emphasizes positive or negative external effect, or neutral messages related to investing tokens in personal and public accounts, and then repeatedly presented with a 4-block dilemma, consisting of 8 trials per block. The results showed that a group reported parental overprotection shows significantly lower levels of prosocial behavior than the other only in condition that emphasizes negative external effect, especially when dilemma were presented in block 2 and 3. This suggests that a group experiencing parental overprotection does not always show a low level of prosocial behavior, rather prosocial behavior is influenced by various contextual variables.
Abstract
This study investigated the indirect effect of psychological detachment on the relationship between emotional exhaustion and sleep quality. A daily survey (twice a day from Monday to Friday) was conducted to examine whether emotional exhaustion may predict sleep quality via psychological detachment at the within-person level. Results revealed that: 1) daily emotional exhaustion leaving the office was negatively related to the psychological detachment after work; 2) daily psychological detachment after work was positively related to the quality of sleep at night; 3) daily psychological detachment mediated the relationship between emotional exhaustion and sleep quality. These findings can enhance understanding of the process by which psychological mechanism contributes to sleep quality on a daily basis. This study also demonstrates that mentally “switch off” would supplement resources depleted at work and lessen the level of mental activation and arousal to get better sleep.