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51.
Nigar G. Khawaja Aparna Hebbani Cindy Gallois Mairead MacKinnon 《Australian psychologist》2019,54(5):427-437
52.
Prodoehl J Corcos DM Leurgans S Comella CL Weis-McNulty A MacKinnon CD 《Journal of motor behavior》2008,40(4):301-313
The authors examined the relationship between movement velocity and distance and the associated muscle activation patterns in 18 individuals with focal hand dystonia (FHD) compared with a control group of 18 individuals with no known neuromuscular condition. Participants performed targeted voluntary wrist and elbow flexion movements as fast as possible across 5 movement distances. Individuals with FHD were slower than controls across all distances, and this difference was accentuated for longer movements. Muscle activation patterns were triphasic in the majority of individuals with FHD, and muscle activation scaled with distance in a similar manner to controls. Cocontraction did not explain movement slowing in individuals with dystonia, but there was a trend toward underactivation of the 1st agonist burst in the dystonic group. The authors concluded that slowness is a consistent feature of voluntary movement in FHD and is present even in the absence of dystonic posturing. Underactivation of the 1st agonist burst appears to be the most likely reason to explain slowing. 相似文献
53.
Yasemin Kisbu-Sakarya David P. MacKinnon Milica Miočević 《Multivariate behavioral research》2013,48(3):261-268
The distribution of the product has several useful applications. One of these applications is its use to form confidence intervals for the indirect effect as the product of 2 regression coefficients. The purpose of this article is to investigate how the moments of the distribution of the product explain normal theory mediation confidence interval coverage and imbalance. Values of the critical ratio for each random variable are used to demonstrate how the moments of the distribution of the product change across values of the critical ratio observed in research studies. Results of the simulation study showed that as skewness in absolute value increases, coverage decreases. And as skewness in absolute value and kurtosis increases, imbalance increases. The difference between testing the significance of the indirect effect using the normal theory versus the asymmetric distribution of the product is further illustrated with a real data example. This article is the first study to show the direct link between the distribution of the product and indirect effect confidence intervals and clarifies the results of previous simulation studies by showing why normal theory confidence intervals for indirect effects are often less accurate than those obtained from the asymmetric distribution of the product or from resampling methods. 相似文献
54.
Saeed A. AL‐Dossary 《International Journal of Selection & Assessment》2016,24(4):305-311
The purpose of this study was to evaluate the psychometric properties of the cultural intelligence scale (CQS) in a Saudi Arabian context. The CQS was administered to a random sample of 553 undergraduate students at Hail University. Results of a confirmatory factor analysis (CFA) supported the four‐factor structure of the CQS: cognitive, metacognitive, motivational, and behavioral. In addition, the results of a second‐order CFA indicated that these four factors can be further collapsed into one general factor. The CQS showed adequate internal consistency and test–retest reliability as well as convergent and discriminant validity. The results further revealed no significant differences between males and females. In sum, results suggest that the Arabic version of the CQS is a reliable and valid instrument for measuring an individual's intercultural intelligence. 相似文献
55.
ALIA AL‐SAJI 《美学与艺术评论杂志》2019,77(4):475-488
I develop a phenomenological account of racialized encounters with works of art and film, wherein the racialized viewer feels cast as perpetually past, coming “too late” to intervene in the meaning of her own representation. This points to the distinctive role that the colonial past plays in mediating and constructing our self‐images. I draw on my experience of three exhibitions that take Muslims and/or Arabs as their subject matter and that ostensibly try to interrupt or subvert racialization while reproducing some of its tropes. My examples are the Jean‐Joseph Benjamin‐Constant exhibition at the Montreal Museum of Fine Arts (2015), the exposition Welten der Muslime at the Ethnologisches Museum in Berlin (2011–2017), and a sculpture by Bob and Roberta Smith at the Leeds City Art Gallery, created in response to the imperial power painting, General Gordon's Last Stand, that is housed there. My interest is in how artworks contribute to the experience of being racialized in ways that not only amplify the circulation of images but also constitute difficult temporal relations to images. Drawing on Frantz Fanon's Black Skin, White Masks, I argue that such racialized images are temporally gluey, or stuck, so that we are weighted and bogged down by them. 相似文献
56.
Milica Miočević Holly P. O’Rourke David P. MacKinnon Hendricks C. Brown 《Behavior research methods》2018,50(1):285-301
This project examined the performance of classical and Bayesian estimators of four effect size measures for the indirect effect in a single-mediator model and a two-mediator model. Compared to the proportion and ratio mediation effect sizes, standardized mediation effect-size measures were relatively unbiased and efficient in the single-mediator model and the two-mediator model. Percentile and bias-corrected bootstrap interval estimates of ab/s Y , and ab(s X )/s Y in the single-mediator model outperformed interval estimates of the proportion and ratio effect sizes in terms of power, Type I error rate, coverage, imbalance, and interval width. For the two-mediator model, standardized effect-size measures were superior to the proportion and ratio effect-size measures. Furthermore, it was found that Bayesian point and interval summaries of posterior distributions of standardized effect-size measures reduced excessive relative bias for certain parameter combinations. The standardized effect-size measures are the best effect-size measures for quantifying mediated effects. 相似文献
57.
This study describes the implementation and effects of a 32-week teacher-led spatial reasoning intervention in K–2 classrooms. The intervention targeted spatial visualization skills as an integrated feature of regular mathematics instruction. Compared to an active control group, children in the spatial intervention demonstrated gains in spatial language, visual-spatial reasoning, 2D mental rotation, and symbolic number comparison. Overall, the findings highlight the potential significance of attending to and developing young children's spatial thinking as part of early mathematics instruction. 相似文献
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59.
This article describes how a workshop for career women who were experiencing difficulty in deciding whether or not to have a child was designed, conducted, and evaluated. 相似文献
60.