The purpose of this study was to investigate online social comparison and impostor phenomenon (IP) in undergraduate music education students. I employed a sequential explanatory mixed models design to explore the extent to which music education students experienced IP, used Facebook, and engaged in social comparison on Facebook. I explored participants' perceptions of how they engaged in online social comparison in the context of their professional lives. In Phase 1, I surveyed participants to measure impostor phenomenon, Facebook intensity, and Facebook social comparison. Analysis of the descriptive data revealed that 77.8% of participants experienced frequent to intense IP symptoms. Facebook social comparison emerged as the only significant predictor of IP in participants accounting for 13.3% of the variance in CIPS scores. In Phase 2, I conducted focus groups to investigate participants' perceptions of how they engaged in online social comparison as related to their professional identity. The themes that emerged from the qualitative data included: (a) comparing to peers online, (b) using Facebook for professional purposes, (c) psychological effects of online comparison, and (d) withdrawing from social media to avoid adverse effects. Lastly, I integrated the quantitative and qualitative data to expound upon and confirm findings in each phase. The results indicated that as participants progressed through their music education degree program, they used Facebook more frequently in each subsequent year, leading to increased social comparison and IP.

[pt] O presente trabalho introduz o conceito de impostores com relevo: uma maneira eficiente para representar objetos por imagens em sistemas que requerem visualização em tempo real, especialmente jogos 3D e ambientes de realidade virtual. Para tanto, mesclam-se métodos tipicamente pertencentes à área de renderização baseada em imagens com métodos tradicionais de visualização baseada em geometria. A técnica requer do usuário apenas a modelagem geométrica da entidade a ser representada. Posteriormente o sistema sintetiza texturas com relevo, dinamicamente atualizadas quando necessário, e as visualiza utilizando o método de mapeamento de texturas com relevo. Esta abordagem permite inserir modelos complexos, tanto pela sua natureza geométrica, como pelo seu processo de visualização, no pipeline gráfico em tempo real. Além disso, os impostores com relevo procuram aproveitar o tempo ocioso ou recursos paralelos disponíveis no processador, de forma a balancear a carga de processamento de visualização entre CPU/GPU. Estes impostores também tornam possível a representação de qualquer tipo de objeto geométrico através de mapeamento de texturas com relevo. / [en] The present work introduces the concept of relief impostors: an efficient manner of representing objects by images in systems that require real time rendering, such as 3D games and virtual reality environments. For this purpose, typical methods of image-based rendering are mixed with traditional geometry based rendering methods. This technique only requires from the user the geometric modeling of the entity to be represented. After this, the system synthesizes relief textures, dynamically refreshed when necessary, and renders them using the method of relief texture mapping. This approach allows complex models to be inserted into the real time pipeline system. This complexity arise either from the geometric nature of the model or its process of visualization. Also, the relief impostors try to use the idle time or parallel resources available on the processor, in order to balance the work to be done between the CPU and GPU. Furthermore, they make possible the representation of any kind of geometric object by the relief texture mapping technique.

Present graphic requires a lot of optimizations of rendering techniques and mathematical calculations. It is caused by increased requirements of scene's visualization. One of scene's optimizing techniques is the Level of detail. This thesis is focused on methods used by LOD in OpenSceneGraph and OpenGL library. Next it will be described how to choose the right level of detail in a scene. Later it will be explained how to simplify 3D models. These techniques will be implemented in converting tool and demonstrating application. Methods for simplify 3D models will be tested for their speed and quality.

No description available.

In the undergraduate and working environments, some science, technology, engineering, and math (STEM) areas remain dominated by males. The purpose of this study was to understand the gendered experience of individuals in STEM majors by assessing students’ math self-efficacy, impostorism (a feeling of intellectual phoniness), and future goals. Based on prior research, an overall conceptual model was proposed and analyzed. Several related precursors including gender role orientation, perceived parental influence, math identity, and theories of intelligence were included in the model. Three hundred six undergraduates (64.38% female) in the colleges of natural science, geosciences, and engineering responded to an online survey addressing these constructs. Based on prior research, hypotheses were created proposing that females would report higher impostorism, lower math self-efficacy, and more femininity than males. I expected that masculinity, perceived parental influence, an entity theory of intelligence, and high math identity would predict the impostor phenomenon. Moreover, I hypothesized that the relation of each of these predictors to impostorism would be moderated by sex. For the next two hypotheses, I proposed that the four sources of math self-efficacy would predict math self-efficacy, but this relation would be moderated by impostorism. Finally, I expected that impostorism would lead to reduced future expectations and aspirations, but that this association would be mediated by math self-efficacy. Results indicated partial support of the study hypotheses, and a revised model was created. Both sexes reported similar levels of impostorism, but females had lower math self-efficacy and greater femininity than males. Masculinity negatively predicted the impostor phenomenon, while math identity and an entity theory of intelligence positively related to the dependent variable. Sex moderated the effect of perceived parental influence such that males’ impostorism was more affected by parental influence than females’. Emotional arousal was a strong contributor to math self-efficacy, but this relation was attenuated by impostorism. Coping with emotional arousal was positively associated with math self-efficacy; however, this association was significantly stronger for low impostors than high ones. Finally, impostors were less likely to expect to go to graduate school or work in a STEM-related field. Implications for schools and professors are discussed. / text

Thesis (M.S.W.)--Smith College School for Social Work, Northampton, Mass., 2008. / Typescript. Includes bibliographical references (leaves 76-77).

Le syndrome de l’imposteur peut être source d’une grande souffrance. Soixante-deux à 70% de la population peuvent être amenés à douter, ne serait-ce qu’une fois, de la légitimité de leur statut. Ces questionnements s’orientent sur l’impression de tromper les autres, sur les attributions de sa situation et sur la peur de voir son incompétence mise à jour. Malgré sa prévalence, peu d’études s’intéressent au caractère pathologique de ce syndrome, et encore moins à chercher des outils d’accompagnement adaptés. Les objectifs de ce travail étaient de valider un outil d’évaluation en français, et d’améliorer la compréhension de la dimension cognitive de ce syndrome.L’étude 1 est une étude quantitative menée auprès de 549 participants. Elle propose la validation du concept du syndrome de l’imposteur et la réalité d’un syndrome pouvant être pathologique. Les résultats démontrent différents profils d’imposteurs pour lesquels les comorbidités et leur vécu se révèlent différents.L’étude 2 est une étude quantitative menée auprès de 1597 participants. Elle a permis la validation de la Clance Impostor Phenomenon Scale (CIPS) dans sa version francophone. Les résultats démontrent des bonnes qualités psychométriques du questionnaire. L’étude 3 est une étude quantitative menée auprès de 694 participants. Elle évalue les manifestations anxieuses inhérentes au syndrome de l’imposteur. Les analyses rendent compte de profils d’imposteurs différents. L’établissement d’un modèle d’émergence de ce syndrome a été suggéré afin d’interroger sa présence lors des périodes de grand stress de la vie. L’étude 4 est une étude quantitative menée auprès de 873 participants. Elle est axée sur l’intégration de l’acceptation inconditionnelle de soi comme outil pertinent de prise en charge des imposteurs. Elle propose de plus un profil cognitif de ces personnes au regard de la représentation de l’échec, des attitudes dysfonctionnelles et d’une faible acceptation inconditionnelle de soi. / The impostor phenomenon can represent a significant distress source. The literature suggests that 60-70% of the population questions their legitimacy at least once in their lives. These doubts focus on feelings of inadequacy or fraud, poor success attribution, and the fear of being exposed as an impostor. Few studies have explored the pathological aspects of the impostor phenomenon despite its prevalence. Moreover, to our knowledge too little research has been conducted to design adequate management tools. The research carried out for this thesis seeks to validate existing impostor phenomenon measures, the Clance Impostor Phenomenon Scale (CIPS), as well as better understand cognitive dimensions related to this syndrome.Study 1 was a quantitative study carried out on a sample of 549 participants. This study deals with the validation of the independent concept of impostor phenomenon as well as potential pathological aspects related to it. Results showed different impostor profiles both in intensity and impacts of this syndrome.Study 2 was a quantitative study carried out on 1,597-strong sample. The main objective was to validate an existing impostor phenomenon scale (CIPS) in French. The results demonstrated good psychometric validity for the French version.Study 3 was a quantitative study carried out on a sample of 694 participants. This study examined anxiety manifestations linked to the impostor phenomenon. The results demonstrated different profiles of impostors. A model was developed to help understand the manifestation of this syndrome during periods of severe stress and change.Study 4 was a quantitative study carried out on a sample of 873 participants. This study focused on unconditional self-acceptance as a useful method of appropriate therapeutic management linked to the impostor phenomenon. A cognitive profile of impostors was developed that helps account for irrational beliefs about failure, dysfunctional attitudes, and low unconditional self-acceptance.

This report studies impostor rendering for use with the virtual reality head mounted display Oculus Rift. The technique is replacing 3D models with 2D versions to speed up rendering, in a 3D engine. It documents the process of developing a prototype in C++ and DirectX11 and the required research needed to complete the assignment. Included in this report are also the steps involved in getting Oculus Rift support to work in a custom 3D engine and measuring the impact of impostor rendering when rendering to two screens of the head mounted display. The goal was to find the maximum models the engine could draw, while keeping the frame rate locked at 60 frames per second. 2 testers at Nordicstation came to the conclusion that 40-50 meters was the optimal distance for impostor rendering. Any closer and the flatness was noticeable. The results showed a clear improvement in frame rate when rendering a graphically intensive scene. The end result showed that the goal could be achieved at a maximum of 3000 trees with 1000 leaves. Impostor rendering was deemed effective when drawing beyond 500 trees at a time. Less than that and the technique was not needed to achieve 60 frames per second. / Denna rapport undersöker renderingstekniken impostors när den används i en simpel 3D motor tillsammans med virtuella verklighetshjälmen Oculus Rift. Impostors betyder på engelska bedragare och tekniken går ut på att den byter ut avancerade 3D modeller mot simpla 2D versioner när de är ett visst avstånd ifrån användarens virtuella kamera. Om den är korrekt implementerad ska användaren inte märka att vissa modeller är platta och tekniken sparar på resurser då grafikmotorn inte behöver rita ut alla modeller. Rapporten går igenom vad som undersöktes i förundersökningen för att kunna utveckla en prototyp med utvecklingspråket C++ och DirectX 11. I rapporten står även hur prototypen utvecklades och hur stöd för Oculus Rift lades till. De slutliga resultaten visade att impostors hade en stor påverkan på uppdateringshastigheten när antalet 3D modeller som skulle ritas var många, annars hade tekniken ingen påverkan för att nå 60 bilder per sekund. 2 testare från Nordicstation kom fram till att ett avstånd på 40-50 meter från spelarens kamera till utritning av impostors var lämplig, för att dölja att de endast är platta versioner av 3d modeller. Testet visade att motorn kunde rita ut 3000 träd, med 1000 löv på varje, och hålla 60 bilder per sekund, vilket var målet. Detta på ett avstånd av 40m på impostors. Impostorrendering var effektiv när man ritade ut fler än 500 träd åt gången. Mindre antal gav ingen märkbar effekt på testdatorn som användes för testet.

African American women in educational leadership roles face a myriad of barriers and challenges. Black feminist theory and impostor phenomenon theory offered a potent conceptual lens for understanding the experiences of successful African American women. A qualitative phenomenological study was conducted to examine and explore strategies that African American women use to (a) navigate the impostor phenomenon in relation to career mobility, and (b) identify and understand how social constructs in educational leadership organizations can contribute to their experiences. The research also examined the historical and contemporary problems of subjugation, oppression, racism, and sexism as narrated by 12 African American women who are in educational leadership roles. Data collected from the participants were triangulated and analyzed thematically resulting in six themes: (1) experiences of being questioned and undermined by superiors; (2) experiences of other people's perceptions about African American female leaders; (3) the need for a mentor; (4) giving others a chance to question them; (5) intentional self-care; and (6) lack of support from leaders and mentors. It is recommended that those who work within the education systems focus on acquiring an understanding of the internal struggles African American women navigate in response to systemic, external challenges, so they can better support these women in terms of career mobility and give more attention to retaining them in educational leadership roles.

Impostorfenomenet (IF) är vanligt förekommande i den akademiska kontexten. Studier visar att fenomenet har en negativ påverkan på studenters hälsa och prestation, vilket riskerar att följa studenterna in i arbetslivet. Det är viktigt att undersöka vilka faktorer som kan påverka fenomenet, för att få en ökad kunskap om hur det kan motverkas. Självmedkänsla och ett dynamiskt mindset har i tidigare forskning föreslagits som potentiella skyddsfaktorer mot IF, medan ett statiskt mindset har associerats till högre grad av IF. Syftet med denna tvärsnittsstudie var att undersöka hur vanligt förekommande impostorfenomenet är hos universitetsstudenter vid ett svenskt universitet. Ytterligare syftade studien till att undersöka huruvida självmedkänsla och mindset predicerar IF. Totalt 238 studenter från olika universitetsutbildningar deltog i studien. Data samlades in via Clance Impostor Scale, Theory of Intelligence Scale och Self-compassion Scale Short Form. Deskriptiva analyser och en multipel regressionsanalys genomfördes. Resultatet visade att 68.1% av deltagarna upplevde frekventa och höga nivåer av IF. Självmedkänsla och mindset förklarade tillsammans 51.7% av variationen i IF. Endast självmedkänsla var en signifikant prediktor, där högre grad av självmedkänsla relaterade till lägre grad av IF. Resultatet antyder att IF är vanligt förekommande, samt att ett självmedkännande förhållningssätt kan skydda mot impostorkänslor, vilket anger en riktning för framtida forskning för att utveckla lämpliga interventioner. / The impostor phenomenon (IP) is common within the academic context, and has a negative impact on students’ health and performance, with the risk of affecting their later careers. This highlights the need to investigate which factors are involved in the phenomenon, to develop a better understanding for its prevention. Self-compassion and a growth mindset have been suggested as potential resilience factors against IP, while a fixed mindset has been linked to higher rates of IP. The purpose of the present study was to determine the prevalence of IP in a sample of Swedish university students. The purpose was also to explore how self-compassion and mindset predict IP. A total of 238 students from different university programs participated in the study. Data was collected with the Clance Impostor Scale, Theory of Intelligence Scale and Self-compassion Scale Short Form. Descriptive analyses and a multiple regression analysis was performed. The result showed that 68.1% of participants reported frequent or high levels of IP. Self-compassion and mindset together explained 51.7% of the variation in the impostor phenomenon. Self-compassion was the only significant predictor, with higher rates of self- compassion being related to lower rates of IP. The results suggest that IP is a common experience, and that self-compassion can function as a protective factor, which motivates the need for further research on effective interventions.