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81.
We provide an analysis of holdout and giving (Ho&G) behaviours in prelinguistic infants and investigate their relationship with index finger pointing. The frequency of Ho&Gs at 10 and 11 months along with the length of the following social interaction correlated with index finger pointing at 12 months. We conclude that Ho&Gs are a precursor to index finger pointing and that this provides support for social‐pragmatic approaches to communicative development. 相似文献
82.
The Role of School Contexts in Adolescents' Weight‐loss Behaviors and Self‐perceptions of Overweight 下载免费PDF全文
Anna S. Mueller 《Sociological inquiry》2015,85(4):532-555
Using the National Longitudinal Study of Adolescent to Adult Health and multilevel modeling, this study investigates the role high school social contexts play in the development of adolescents' weight‐loss behaviors and overweight self‐perceptions. Overall, the results indicate that there is an important association between adolescents' weight‐loss behaviors and self‐perceptions of overweight and the weight‐related context of their school. For example, both adolescent boys and girls are less likely to engage in weight‐loss behaviors when overweight is prevalent among their same‐sex schoolmates. However, gender differences are also found. For example, while adolescent boys' self‐perceptions of overweight are significantly associated with their same‐sex schoolmates' characteristics and behaviors, this is not the case for adolescent girls. Overall, these findings suggest that meso‐level social contexts—such as schools—may be particularly important to how individuals incorporate macro‐level beliefs or values—such as gendered body ideals—into their own behaviors and self‐concepts. 相似文献
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Anna Arstein-Kerslake 《Disability & Society》2015,30(10):1459-1473
This article addresses the right to legal capacity to consent to sex of people with intellectual disabilities. Article 12 of the Convention on the Rights of Persons with Disabilities guarantees the right to legal capacity on an equal basis in all areas of life. This article discusses sex as an area of life in which people with intellectual disabilities are frequently not being granted legal capacity on an equal basis. The article examines current capacity to consent to sex law in Ireland, England and Wales in light of Article 12. It proposes an ‘agreement model’ as a potential alternative that would be Article 12 compliant. 相似文献
86.
Georgios?FlorosEmail author Anna?Paradisioti Michalis?Hadjimarcou Demetrios?G.?Mappouras Olga?Karkanioti Konstantinos?Siomos 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2015,31(2):367-384
This paper presents results from the study of gambling behaviors in a representative sample of Cypriot high-school students. The aim of the study was to ascertain epidemiology of adolescent online gambling in Cyprus and possible correlates. The sample consisted of 2,684 students (48.5 % boys, 51.5 % girls) from the first grades of junior (Gymnasium) and senior (Lyceum) high school. Our results indicate that gamblers presented with lower school achievement and related expectations while scoring consistently higher on measures of Internet addiction, parental bonding and psychopathology. Discriminant analysis revealed two profiles which explained the most variance in gambling behavior; the first profile that corresponded to more explained variance was the student with higher psychopathology, less prosocial behavior, higher Internet addiction score with higher frequencies of online activities and moderate levels of truancy and lower expectation of school achievement. The second profile was that of a student who reported less psychopathology, more prosocial behavior, less involvement with the Internet in general but skipped classes more and his prospects on finishing high school were even slimmer. These results will be utilized in the design of a comprehensive prevention program in an effort to combat online addictive behaviors. 相似文献
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Graciela Espinosa-Hernández Joanna Bissell-Havran Anna Nunn 《Journal of sex research》2015,52(8):887-897
This study examined the role of religiousness and gender in age at first intercourse, and sexual expectations and values in Mexico, a macrocontext where the majority is Mexican and Catholic (83%). Participants were Catholic and nonreligious adolescents (54% girls) attending middle (71%) or high school. Findings indicated that Catholic adolescents engaged in sexual intercourse at later ages than nonreligious adolescents. Both religious attendance and importance of religion and values in sexual decision making were associated with more conservative sexual values. Boys who were raised Catholic were more likely to endorse female virginity values and were less likely to expect to wait to have sex until married than nonreligious boys. These associations were not significant among girls. Catholic boys may be more likely to internalize sexual double standard beliefs regarding premarital sex than nonreligious boys. This study expands our understanding of the role of religiousness in Mexican adolescents’ sexuality. 相似文献
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In this article, we focus on the analysis of individual decision‐making for the formation of social networks, using experimentally generated data. We analyze the determinants of the individual demand for links under the assumption of agents' static expectations and identify patterns of behavior that correspond to three specific objectives: players propose links so as to maximize expected profits (myopic best response strategy); players attempt to establish the largest number of direct links (reciprocator strategy); and players maximize expected profits per direct link (opportunistic strategy). These strategies explain approximately 74% of the observed choices. We demonstrate that they are deliberately adopted and, by means of a finite mixture model, well identified and separated in our sample. (JEL C33, C35, C90, D85) 相似文献
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Anna E. Bargagliotti 《统计学通讯:模拟与计算》2015,44(2):533-550
We explore criteria that data must meet in order for the Kruskal–Wallis test to reject the null hypothesis by computing the number of unique ranked datasets in the balanced case where each of the m alternatives has n observations. We show that the Kruskal–Wallis test tends to be conservative in rejecting the null hypothesis, and we offer a correction that improves its performance. We then compute the number of possible datasets producing unique rank-sums. The most commonly occurring data lead to an uncommonly small set of possible rank-sums. We extend prior findings about row- and column-ordered data structures. 相似文献