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241.
Choi‐Fan Yiu Wai‐Yin Poon 《The British journal of mathematical and statistical psychology》2008,61(1):49-74
Many variables that are used in social and behavioural science research are ordinal categorical or polytomous variables. When more than one polytomous variable is involved in an analysis, observations are classified in a contingency table, and a commonly used statistic for describing the association between two variables is the polychoric correlation. This paper investigates the estimation of the polychoric correlation when the data set consists of misclassified observations. Two approaches for estimating the polychoric correlation have been developed. One assumes that the probabilities in relation to misclassification are known, and the other uses a double sampling scheme to obtain information on misclassification. A parameter estimation procedure is developed, and statistical properties for the estimates are discussed. The practicability and applicability of the proposed approaches are illustrated by analysing data sets that are based on real and generated data. Excel programmes with visual basic for application (VBA) have been developed to compute the estimate of the polychoric correlation and its standard error. The use of the structural equation modelling programme Mx to find parameter estimates in the double sampling scheme is discussed. 相似文献
242.
A culture promoting a strong desire for romantic relationships can greatly influence feelings of romantic loneliness and of closeness. In this study, the authors hypothesized that when not in a romantic relationship, U.S. young adults experience greater degrees of romantic loneliness because of a high desire for romantic relationships, compared with Korean young adults. The authors also predicted that when in a romantic relationship, U.S. young adults experience greater closeness to their romantic partner than do Korean young adults. Results revealed that in a sample of 227 U.S. and Korean students, U.S. students reported significantly higher levels of romantic loneliness than did Koreans when not in a romantic relationship and significantly lower levels of romantic loneliness when in a stable romantic relationship. U.S. students also reported a greater degree of closeness in romantic relationships than did Korean students. The results suggest that Western cultures' strong emphasis on the importance of romantic relationships may unduly amplify individuals' levels of loneliness. 相似文献
243.
Philip Choi 《British Journal for the History of Philosophy》2019,27(1):23-45
The aim of this paper is to challenge the reliabilist interpretation of William Ockham (ca. 1287–1347)'s epistemology. The discussion proceeds as follows. First, I analyse the reliabilist interpretation into two theses: (1) a negative thesis I call the Anti-Internalism Thesis, according to which, for Ockham, epistemic justification does not depend on any internal factors that are accessible by reflection; (2) a positive thesis I call the Reliability Thesis, according to which epistemic justification in Ockham depends on the reliability of a causal process through which a given judgment is produced. Secondly, I argue that the Anti-Internalism Thesis fails since Ockham's notion of evidentness (evidentia), which is at the heart of his theory of justification, strongly suggests that he posits an indispensable, internalist element of justification. Lastly, I argue that the Reliability Thesis also fails since not only can there be a reliable but inevident judgment in Ockham's framework, his emphasis on causality is best read not as talk of reliability, but as his emphasis on the relation between reason (or evidence) and what is based on reason. 相似文献
244.
Oishi S Diener E Choi DW Kim-Prieto C Choi I 《Journal of personality and social psychology》2007,93(4):685-698
The authors examined cultural and individual differences in the relation between daily events and daily satisfaction. In a preliminary study, they established cross-cultural equivalence of 50 daily events. In the main study, participants in the United States, Korea, and Japan completed daily surveys on the 50 events and daily satisfaction for 21 days. The multilevel random coefficient model analyses showed that (a) the within-person association between positive events and daily satisfaction was significantly stronger among Asian American, Korean, and Japanese participants than among European American participants and (b) the within-person association between positive events and daily satisfaction was significantly weaker among individuals high in global life satisfaction than among those low in global life satisfaction. The findings demonstrate a weaker effect of positive events on daily well-being among individuals and cultures high in global well-being. 相似文献
245.
Jang-Han Lee Hyoseok Kwon Joonho Choi Byung-Hwan Yang 《Cyberpsychology & behavior》2007,10(5):617-623
During abstinence from alcohol, craving is elicited by the cues and contexts previously associated with alcohol, which contribute to relapse. To prevent the craving and relapse experienced by alcoholics, cue-exposure therapy (CET) has been used to extinguish the association between alcohol and alcohol-related cues and contexts. This study applied CET, using a virtual reality (VR) system, to eight members of an Alcoholics Anonymous group for eight sessions. Cues and contexts most likely to elicit an urge to drink were selected through a preliminary survey in order to compose VR-CET scenarios: a glass, a bottle, food, and a bar were judged to be the most tempting for people in alcohol dependence and abstinence. Using these cues and contexts, a Japanese-style pub and a western bar were created. Each session was administered for 30 minutes by a psychiatrist and included an introduction, immersion, VR navigation, interviews about feelings, and self-report questionnaires about cravings. The eight sessions consisted of initial and closing sessions and person-, object-, and situation-focused sessions. As a result, a reduction in cue-elicited craving after VR-CET was reported. A mean score of 15.75 (SD = 10.91) on the Alcohol Urge Questionnaire in the first session decreased to 11.50 (SD = 5.76) in the final session. This study suggests that using virtual reality can enhance the effectiveness of CET. 相似文献
246.
Sungho Choi 《Erkenntnis》2007,67(1):1-16
Recently Stephen Barker has raised stimulating objections to the thesis that, roughly speaking, if two events stand in a relation
of counterfactual dependence, they stand in a causal relation. As Ned Hall says, however, this thesis constitutes the strongest
part of the counterfactual analysis of causation. Therefore, if successful, Barker’s objections will undermine the cornerstone
of the counterfactual analysis of causation, and hence give us compelling reasons to reject the counterfactual analysis of
causation. I will argue, however, that they do not withstand scrutiny. 相似文献
247.
Choi N 《Psychological reports》2003,92(2):473-480
The purpose of this study was to examine further the factorial validity of the Self-efficacy Scale via component and subsequent correlational analyses. 651 undergraduates enrolled in an introductory psychology course voluntarily completed the Self-efficacy Scale and the Bem Sex-role Inventory. A principal component analysis with an orthogonal rotation produced a two-factor solution which was remarkably similar to the factor structures reported previously. The two factors (General Self-efficacy and Social Self-efficacy) accounted for about 34% of the total variance. Further, the correlation coefficients indicated that General Self-efficacy was more strongly related to masculine traits than to feminine traits, as defined by the Bem Sex-role Inventory. 相似文献
248.
Jungho Ryu Chee-Sung Park Jong-Jin Choi Byung-Dong Hahn Woon-Ha Yoon Byoung-Kuk Lee 《Philosophical Magazine Letters》2013,93(11):665-672
We report the dielectric and ferroelectric behavior of thick films, ~10 µm, synthesized by aerosol deposition. The base composition of the films was selected to be 0.9Pb(Zr0.52Ti0.48)O3–0.1Pb(Zn1/3Nb2/3)O3 (PZT–PZN), which was modified with Mn to 0.9Pb(Zr0.52Ti0.48)O3–0.1Pb(Zn1/3Nb2/3) O3–0.52 wt% MnO2 (PZT–PZN–Mn) in order to induce hardening. The polarization dynamics of the synthesized films was modeled using the theory developed for magnetic glassy systems. It was found that the substitution of Mn significantly (1) enhances the relaxation time, (2) reduces the magnitude of dielectric constant and dielectric loss, and (3) enhances the internal bias field. The results indicate the presence of domain wall pinning by the formation of defect dipoles. 相似文献
249.
Cognitive performance has been shown to be enhanced when performance-based rewards are at stake. On the other hand, task-irrelevant threat processing has been shown to have detrimental effects during several cognitive tasks. Crucially, the impact of reward and threat on cognition has been studied largely independently of one another. Hence, our understanding of how reward and threat simultaneously contribute to performance is incomplete. To fill in this gap, the present study investigated how reward and threat interact with one another during a cognitive task. We found that threat of shock counteracted the beneficial effect of reward during a working memory task. Furthermore, individual differences in self-reported reward-sensitivity and anxiety were linked to the extent to which reward and threat interacted during behaviour. Together, the current findings contribute to a limited but growing literature unravelling how positive and negative information processing jointly influence cognition. 相似文献
250.
Hee Sun Park Doshik Yun Hye Jeong Choi Hye Eun Lee Dong Wook Lee Jiyoung Ahn 《International journal of psychology》2013,48(5):922-934
The social identity of another person, in addition to the social identity of self, can be an important factor affecting the types of attribution judgments and emotions that individuals indicate for the other person. In April 2007, the perpetrator of the shooting incident on the Virginia Tech University campus was identified as a person who emigrated to the USA from Korea at a young age. The current study compared non‐Korean Americans, Korean Americans, Koreans in the USA, and Koreans in Korea in terms of their attributions and emotions concerning the perpetrator and the shooting incident. Participants were asked to indicate (1) the extent to which they attributed the cause of the incident to either American society or the perpetrator, (2) their emotions (e.g., upset), and (3) the extent to which they categorized the perpetrator as an American, a Korean American, or a Korean. The results indicated that non‐Korean Americans were most likely to attribute the cause of the incident to the perpetrator as opposed to American society. Non‐Korean Americans, Korean Americans, and Koreans in the United States had more negative emotions (e.g., unhappy, sad, and upset) about the incident than Koreans in Korea did. The results also indicated that individuals differed in their attributions and emotions depending on how they categorized the perpetrator. For example, categorizing the perpetrator as being a Korean was positively related to Americans’ tendency to hold the perpetrator responsible, while categorizing the perpetrator as being an American was negatively related to the tendency to hold the perpetrator responsible among Koreans in Korea. The findings may imply that social identity theory, intergroup emotion theory, and cultural orientations (e.g., individualism and collectivism) can provide insights into people's reactions to a tragic incident. 相似文献