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351.
Abstract

The aim of this study was to develop a short Basque version of the Inventory of Parent and Peer Attachment (IPPA), as well as to test its factor structure and analyse other psychometric properties. Two studies were carried out. In the first study a confirmatory factor analysis conducted on a sample of 1037 adolescents did not show an optimal model fit of the three-dimensional structure of the original instrument. A subsequent analysis of principal components revealed a one-dimensional structure. The analysis of items led to the elaboration of short forms. In the second study, carried out on another sample of 2129 adolescents, the one-dimensional structure was confirmed, further external validity evidence was provided, and good reliability indices were obtained. A single dimension is concluded, attachment security, as well as the validity and reliability of the short forms of the IPPA in Basque scales.  相似文献   
352.
Self-objectification is often understood as a consequence of internalizing unrealistic media ideals. The consequences of self-objectification have been well studied and include depression and self-harm. We argue that body surveillance, a component of self-objectification that involves taking an observer’s perspective on oneself, is conceptually related to dissociation, a variable related to depression and self-harm. We hypothesized that the normative experience of self-objectification may increase the risk that young women dissociate in other contexts, providing an additional indirect path between self-objectification, depression, and self-harm. Snowball sampling begun with postings on Facebook was used to recruit 160 women, believed to be primarily from the U.S., to complete an online survey about the effects of media on young women. All participants ranged in age from 18–35 (M?=?23.12, Median?=?22, Mode?=?21). Using this sample, we tested a path model in which internalization of media ideals led to body surveillance and body shame, body surveillance led to dissociation and body shame, body shame and dissociation led to depression, and dissociation and depression led to self-harm. This model, in which we controlled for the effects of age, had good fit to the data. Our findings suggest that self-harm and dissociation, both outcomes associated with the literature on trauma, are related to self-objectification. These relationships are discussed in terms of conceptualizing objectification and self-objectification as a form of insidious trauma or microaggression. Clinical implications are also discussed.  相似文献   
353.
In order to partially fill the gap between search studies with artificial and naturalistic stimuli, experiments with segmented and spatially filtered images of real stimuli in the discrete cells of search arrays were conducted. RT × set size functions obtained with the spatially filtered arrays were compared with those obtained with geometric and other types of arrays. With the aid of Fourier analysis, components of target certainty/uncertainty, target-distractor similarity/dissimilarity, and distractor homogeneity/heterogeneity were evaluated for their effects on search performance and efficiency. The comparative effects of valid/invalid and ambiguous/unambiguous markers of search items were included in the experiments to probe the potential contributions of top-down and bottom-up control to search with naturalistic stimuli. Visual coding in the form of spatial frequency passbands and top-down preferences for distractor search were used to explain the results.  相似文献   
354.
This study explores changes in students’ strategies as they solve different types of volume problems. Fifth graders were presented with pictures showing 3D objects and a unit cube; they determined how many cubes made up the object and explained their responses. We examined whether children transferred strategies across problem types, varying in terms of (a) availability of grids that divided objects into individual unit cubes, (b) order of items, (c) object shape, and (d) availability of the unit cube. Children's strategy choices varied systematically with object and task characteristics. They were more likely to use conceptually appropriate strategies when presented with grids. With non-gridded objects, they were more likely to treat a 3D object as a collection of 2D faces. Presenting gridded items first increased the use of conceptually appropriate strategies on the non-gridded items. We discuss findings in the context of Siegler's theory of strategy choice and address educational implications.  相似文献   
355.
A great deal of research into the experiential nature of language has demonstrated that our understanding of events is facilitated through mental simulations of the described linguistic input. However, to date little is understood about how contextual uncertainty about the described event might influence the content and strength of these mental representations or the cognitive effort involved. In this article, we report a single experiment in which participants read sentences such as “The old lady [knows/thinks] that the picnic basket is open.” Following a delay of 250 or 1,500 ms, they responded to pictures that varied in the physical form of the target object (matching vs. mismatching). Results revealed an expected facilitation effect for matching images, but more important, they also showed interference effects (longer reaction times) at the shorter interstimulus interval (ISI; 250 ms) following the uncertain verb thinks, as compared with the certain verb knows. At the longer ISI, this effect was no longer present. This suggests that at the short ISI, uncertain conditions required extra time to construct and map a simulation of events onto the available image. Results are discussed in terms of the mechanisms involved in representing possible events and with reference to related literature on perspective taking.  相似文献   
356.
Using Shrum's (1996) heuristic processing model as an explanatory mechanism, we propose that people who hold vivid autobiographical memories for a specific past experience with media violence will overstate the prevalence of real-world crime versus individuals without vivid memories. We also explore the effects of frequency and recency on social reality beliefs. A survey was administered to 207 undergraduate students who were asked to recall one violent television program or movie seen in the past. Participants were asked to write essays describing the violence, which were coded for vividness. Results support not only cultivation theory, but also the effects of memory vividness: participants with more vivid memories of blood and gore gave higher prevalence estimates of real-world crime and violence than participants with less vivid memories. Findings also suggest that females had more vivid memories for prior media violence than males. Implications for cultivation, the heuristic processing model, and vividness research are discussed.  相似文献   
357.
Nongovernmental organizations (NGOs) serve Iraqis living in Jordan as “guests.” In 2008, 258 Jordanian humanitarian staff and Iraqi volunteers working for NGOs completed a needs assessment survey. Work characteristics, stressors, and support variables were evaluated regarding their influence on depression, anxiety, post-traumatic stress disorder (PTSD), and burnout through multivariate logistic regressions. There was a significant difference in depression, anxiety, and burnout across nationality. Traumatic exposure increased the risk for anxiety, depression, and PTSD. Working longer in the humanitarian sector was associated with less risk of anxiety and depression, and lower social support was a risk for anxiety. Managers were at higher risk for burnout, and low team cohesion was a risk for burnout. Implications for aid organizations are discussed.  相似文献   
358.
A multifactorial between-groups experiment examined the effects of person-focused organizational citizenship behaviours (OCBP) on the performance of teams characterized by different levels of virtuality and task interdependence. Results reveal in low virtual teams the moderating effects of task interdependence on the OCBP–team performance relationship are positive; however, these effects are reversed in high virtual teams. Using social presence and task–technology fit theories, our results indicate that task context affects how OCBP impacts team performance, particularly across different levels of team virtuality. The implications for research on OCB and the management of virtual teams are discussed.  相似文献   
359.
What are the determinants of students' interest in earning a PhD? In this study, we use a mixed-methods approach to pursue this question. Based on qualitative interview data, we develop a model in which academic motivation and academic achievement interact with contextual factors such as working conditions to influence career intentions. We then test this model using a sample of 229 students currently enrolled in master-level courses of study at a German university. Our results speak to the role of intrinsic versus extrinsic motivations in the context of PhD intentions. In contrast to our expectations, results suggest that while intrinsic life aspirations and the intellectual challenge of gaining a PhD play a significant role for students' intention to pursue a PhD, extrinsic life aspirations and contextual determinants seem to be less influential. Furthermore, results highlight the importance of gaining familiarity and experience with academic work for students' career decisions.  相似文献   
360.
Borderline personality disorder (BPD) has been conceptualized as a constellation of symptoms related to problems in self-functioning, emotion regulation, and interpersonal relationships. Its etiology has been connected to individuals’ early childhood environment, caregiving relationships, and traumatic life events. Recent literature has noted the potential presence of BPD beginning in adolescence, or even earlier in childhood. Attachment theory offers a lens for understanding the symptoms of borderline personality disorder and identifying potential aspects of treatment that may be specifically valuable for adolescent patients. Adolescence marks a time when the attachment system has increased relevance due to the importance of identity formation, peer relationships, body representations and the development of autonomy at this time, in the face of physical changes and academic challenges. This article will summarize research on attachment, body representations, personality disorders, and features of development in adolescence, in order to enhance clinical understanding of patients who presenting with these types of difficulties.  相似文献   
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