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Multilevel models (MLM) have been used as a method for analyzing multiple-baseline single-case data. However, some concerns can be raised because the models that have been used assume that the Level-1 error covariance matrix is the same for all participants. The purpose of this study was to extend the application of MLM of single-case data in order to accommodate across-participant variation in the Level-1 residual variance and autocorrelation. This more general model was then used in the analysis of single-case data sets to illustrate the method, to estimate the degree to which the autocorrelation and residual variances differed across participants, and to examine whether inferences about treatment effects were sensitive to whether or not the Level-1 error covariance matrix was allowed to vary across participants. The results from the analyses of five published studies showed that when the Level-1 error covariance matrix was allowed to vary across participants, some relatively large differences in autocorrelation estimates and error variance estimates emerged. The changes in modeling the variance structure did not change the conclusions about which fixed effects were statistically significant in most of the studies, but there was one exception. The fit indices did not consistently support selecting either the more complex covariance structure, which allowed the covariance parameters to vary across participants, or the simpler covariance structure. Given the uncertainty in model specification that may arise when modeling single-case data, researchers should consider conducting sensitivity analyses to examine the degree to which their conclusions are sensitive to modeling choices. 相似文献
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Why Koreans Are More Likely to Favor “Apology,” While Americans Are More Likely to Favor “Thank You”
Two studies investigated whether apologies or thanks are preferred in asking favors in the United States and Korea, and how this relates to perceptions of reduction in positive and negative face threats. In the first study (n = 224), participants composed an e‐mail message where a favor was asked. In the second (n = 807), participants completed questionnaires including a prototypical e‐mail for the situation described in Study 1, as well as measures of negative and positive face threats. Findings showed that (a) Koreans more frequently included apologies in favor‐asking messages, while Americans more frequently included thanks; and (b) Americans considered repeated thanks to reduce the threat to hearers' negative and positive face, but Koreans considered repeated apologies to reduce the threat to speakers' positive face. 相似文献
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Young Jae Kim Eun Joo Cha Kyoung Doo Kang Bung-Nyun Kim 《Journal of Cognitive Psychology》2016,28(5):611-617
Dancing is characterised by physical movement in accordance with rhythm perception. Twelve sport dancers and 12 age- and sex-matched young adults who had no dance experience (control group) were recruited. Body intelligence and brain activity were assessed in both groups using the Body Intelligence Scale (BIS) and resting state functional magnetic resonance imaging. BIS scores of dancers were higher than those of control subjects. The dancer group showed increased functional connectivity from the precentral gyrus to the right cingulate gyrus, right occipital fusiform gyrus, right inferior frontal gyrus, right medial frontal gyrus, left inferior frontal gyrus, right parietal postcentral gyrus, and right frontal lobe compared with control subjects. Sport dancers had increased body intelligence sensitivity compared with matched controls. In addition, the characteristics of dance, including physical movement in accordance with rhythm perception, might be associated with increased brain activity in the somatosensory and rhythm perception networks. 相似文献
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Regarding the effect of identification on creativity in groups, two theoretical views compete. One view emphasizing group‐welfare motives underlying identification proposes a positive identification–creativity relationship in groups because members sharing high group identification are motivated to engage in behaviors that they believe are optimal for their group, including those that depart from the group's status quo, thus resulting in enhanced group creativity. The other view highlighting affiliative motives underlying identification, in contrast, posits a negative identification–creativity relationship in groups because highly identified members are motivated to engage in behaviors that certify their belongingness in the group, that is, behaviors that conform to the existing group norms and status quo, which constrains the group's potential for creativity. This study aims to reconcile these competing perspectives by invoking regulatory focus theory. Drawing on the notion that group identification effects rely on the content of group identity that the identification is based on, the authors suggest that group regulatory focus, as a critical group identity content, moderates the identification–creativity relationship in groups; the relationship is positive when the group's regulatory focus is highly promotion‐oriented, whereas it is negative when the group's regulatory focus is highly prevention‐oriented. Analyzing data from 65 workgroups in a cosmetics company in Korea, the authors show evidence that the identification–creativity relationship is positive in groups with a high promotion focus. The prediction regarding the prevention–focus moderation effect is not supported. The implications of the findings for both theory and practice are discussed. 相似文献
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Eun Hye Park Gyuyoung Ha Sujung Lee Yu Young Lee Sang Min Lee 《Journal of counseling and development : JCD》2019,97(4):437-446
This study investigated the relationships between the supervisory working alliance and supervision outcome variables using meta‐analysis. The authors reviewed 27 articles, dissertations, and theses published between 1990 and 2018. The authors used the MIX program to calculate the meta‐analyses. The results indicate that the supervisory working alliance is positively related to supervision outcome variables. Supervisees’ perceived relationship with the supervisor was positively related to the relationship with the client. This shows that the phenomenon of isomorphism is a repeated pattern in the relationships in supervision and counseling. The authors discuss the limitations and implications. 相似文献
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Carolyn A. Blondin Jeff L. Cochran Eun Jung Oh Cora M. Taylor Robert L. Williams 《Journal of Adult Development》2011,18(4):204-213
Undergraduate students in a Southeastern US University (n = 232) responded to an inventory that included retrospective measures of their parents’ style of parenting (authoritarian
vs. authoritative) and their own childhood psychological tendencies (insecurity vs. confidence), as well as their adult stressors
and political orientation. Authoritative parenting positively correlated with childhood confidence and negatively correlated
with both childhood insecurity and adult stressors. Conversely, authoritarian parenting was positively associated with childhood
insecurity and adult stressors but was not significantly correlated with childhood confidence. For the most part, parenting
styles, early childhood tendencies, and adult stressors were unrelated to adult political ideology, contrary to previous longitudinal
research reporting these connections. 相似文献
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Rhee SH Willcutt EG Hartman CA Pennington BF DeFries JC 《Journal of abnormal child psychology》2008,36(1):29-40
There is significant comorbidity between attention-deficit/hyperactivity disorder (ADHD) and conduct disorder (CD). The conclusions
of studies that examined the causes of comorbidity between ADHD and CD conflict, with some researchers finding support for
the three independent disorders model and others finding support for the correlated risk factors model. We tested these models
and eleven alternative hypotheses using the same analytical approach. The participants were 110 monozygotic twin pairs and
181 dizygotic twin pairs recruited from the Colorado Learning Disabilities Research Center Twin Study. The three independent
disorders model did not fit the data, whereas the correlated risk factors model fit the data well. Several other comorbidity
models fit the data as well as or better than the correlated risk factors model. The results suggest that correlated risk
factors are a better explanation for the comorbidity between ADHD and CD than a third, independent ADHD+CD subtype. 相似文献