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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
171

An Integrative Model of Situation Awareness

Thurston, Andrew 16 May 2016 (has links)
In aviation safety incident reports, lack of situation awareness (SA) is often attributed as the cause of negative safety outcomes, such as accidents. While the predominant model of SA has identified three components of SA, perception, comprehension, and projection, assumptions of their relationships with each other and external criteria are yet tested empirically. Specifically, SA theory suggests comprehension SA fully mediates the relationship between perception and projection SA. Additionally, research on the relationships between individual differences and SA is lacking. The purpose of the current study is to test a comprehensive model of SA which simultaneously examines the described mediation, relationships with individual differences antecedents of SA, and its utility as a predictor of safety using structural equation modeling (SEM). A sample of 349 employees from a diverse background of occupational areas were recruited via Amazon Mechanical Turk to test the model. While self-report measurement of SA was an excellent predictor of safety, the current study did not find empirical support for the presumed mediation among the SA components, and found the relationships between individual differences and SA which contradict extant SA theory. The results suggest differentiating between typical versus maximal SA. Implications for theory and practice are discussed.
172

The breakdown of group cohesion as a key factor in the Chinese brainwashing of Army prisoners of war during the Korean War

Moore, David E. 01 January 1984 (has links)
No description available.
173

Imagined Contact Intervention with an American Muslim Target

Williams, Jamie 01 October 2019 (has links)
Recent studies have shown that imagining contact with a member of a differing social group can reduce prejudice toward said group. This type of prejudice intervention, known as an imagined contact intervention, can be beneficial when direct contact with the outgroup is not feasible. This study adds to existing research on imagined contact interventions by replicating a simple version of the intervention by Husnu and Crisp (2010) and assessing attitudes toward an American Muslim out-group. This study extends the research of Husnu and Crisp (2010) by using American participants as opposed to British participants and also uses an online distribution for the intervention as opposed to a laboratory setting. The research question was: Will the imagined contact intervention significantly reduce prejudice toward the American Muslim out-group when compared to a control condition? Participants who reported socializing with the Muslim out-group less than three times in the past six months completed a form of the intervention online, responded to an out-group attitude index regarding the Muslim out-group, and completed demographics questions. In this study, there was no significant effect of the imagined contact intervention on out-group attitudes. Possible reasons for the intervention’s ineffectiveness, including the use of online distribution for the survey, are discussed along with directions for future research.
174

Relationships Between Personality Type and Cognitive Ability in Marmoset Monkeys (Callithrix jacchus)

Marciano, Zachary 29 October 2019 (has links)
Personality refers to multiple traits that are thought to be stable over time and across situations. It is recognized that personality has a neural basis and is associated with health outcomes. Whether personality is also associated with cognitive ability, however, is still a matter of intense debate. One way to examine these potential relationships is to use a nonhuman primate model for which complexities present in humans can be minimized. Recent research into the varying personality types of marmoset monkeys suggests that there are predominantly three to five core primary domains that most marmosets and other primates can be categorized into, such as dominance, sociability, and neuroticism. The aim of the proposed study was to categorize a small colony of marmosets into respective personality domains, and to examine correlations between the monkeys’ personalities and their cognitive ability. This study was be conducted on 27 marmoset monkeys (14 male, 13 female) housed in the Lacreuse lab at the University of Massachusetts Amherst. A personality survey based on Koski (2015) containing 55 personality traits was utilized by 8 human judges, all of whom have been working with these monkeys daily for at least one year. Each judge rated each individual monkey on each individual trait on a 1 to 7-point scale; 1 indicating total absence of a trait and 7 indicating extreme presence of a trait. Once the survey data was compiled, a principal component analysis (PCA) was conducted to condense the myriad of ratings into smaller distinguishable personality domains. Three personality types were identified in this population, consistent with other non-human primate species. An ICC(2) was performed to ensure the interrater reliabilities of the 8 judges were consistent enough to be considered. Lastly, a linear regression was conducted to reveal possible correlations between the observed personality domains and cognitive performance achieved in a reversal learning task. The results of this experiment showed no statistically significant relationships between any of the three personality domains: Assertiveness, Neuroticism, and Inquisitiveness with the reversal learning cognitive scores. Although these findings suggest that personality and cognitive flexibility are independent in marmosets, we cannot rule out that personality may influence other cognitive domains. Additional studies are needed to examine this possibility.
175

Home-based Cognitive Monitoring: The Role of Personality and Predictors of Adherence and Satisfaction

Sadeq, Nasreen A. 02 July 2019 (has links)
Over the last several decades, a growing awareness of the benefits of regular screening for common health conditions, such as cancer and cardiovascular diseases, has paved the way for preventative screenings to become routine in medical settings. Given that cognitive impairment is frequently reported as the number one worry of older adults, home-based cognitive monitoring may be an innovative solution that allows middle aged and older adults to take an active role in monitoring an important aspect of their health. Although several home-based cognitive monitoring programs have been validated for use in clinical and home-based settings, the Cogstate Brief Battery (CBB) may be the leading candidate based on its brevity, reliability, and lack of practice effects. Although home-based monitoring via the CBB tends to be well-received by participants, it remains unclear how participant characteristics such as personality traits may affect their performance over time. In addition, the factors related to participants’ adherence and satisfaction with regular cognitive monitoring have yet to be examined. Addressing these unknowns are important, as they can help determine what to expect in terms of participant performance, adherence, and satisfaction, if home-based cognitive monitoring was implemented on a population-wide level in the future. This study examined how personality traits influenced cognitive performance over time on the CBB and explored participant adherence and satisfaction with regular cognitive monitoring over 60 months, using quantitative and qualitative data from a sample of cognitively healthy older adults recruited from communities in central Florida (N=158). Statistical analyses of the quantitative data using mixed effects models showed that personality traits were associated with performance on the CBB; in particular, higher conscientiousness was related to more accurate performance at baseline and improvements in speed over time. In addition, higher openness was associated with less accurate performance at baseline and slower, yet more accurate performance over time. In general, participants’ performance was relatively stable over time and fluctuations in performance occurred mostly in the first year of the study. Intraindividual variability also decreased over time, with significant decreases in variability occurring in participants who were higher in conscientiousness and openness. Mixed methods analyses of the data also suggested that participants liked their overall experience with the CBB, exhibited good study adherence over time, and were able to complete their monthly assessments with a high degree of independence. The themes that emerged from the qualitative analysis of participants’ study feedback suggest that most participants liked that CBB was easy, convenient to use, and provided them with a way to challenge themselves. However, some participants disliked one task in particular and felt that the CBB eventually became repetitive. The findings from both studies are useful for future applications of cognitive monitoring programs, as they would help improve the accuracy of conclusions drawn from participants’ performance and could also lead to the development of strategies that encourage long-term participation among individuals whom low study adherence and satisfaction is likely.
176

Jangle Fallacy: Is Grit Distinct from Other Psychological Constructs?

Godkin, Natasha 01 August 2020 (has links)
This paper assessed the redundancy of the construct of grit (Crede, Tynan, Harms, 2017) compared to other similar constructs using structural equation modeling to remove the effect of measurement error. A series of models regressed grit and its subdomains (passion and perseverance of effort) on self-control, conscientiousness, achievement striving, and resilience. The R-squared values for these models ranged from 0.62 to 0.89. It is concluded that the concept of grit is mostly redundant with other constructs and is therefore an example of a Jangle fallacy (Kelley, 1927). The unique aspect of grit is mostly related to its passion subdomain. The latent correlation between the passion and perseverance of effort subdomains was r = 0.19. Further, it was found that several popular measures failed to conform to their intended factor structure.
177

What Leads College Students to Engage in Risky Behaviors: Dynamics among Peer Pressure, Social Media, and Risky Behaviors

Williams, Charese, Lee, Sun-A 03 April 2020 (has links)
Risky behaviors are behaviors which lead to insufficient decision, such as unprotected sexual behavior and drug use. Environmental factors around college students who are mostly late adolescent and young emerging adults could lead them to risky behaviors. Those factors can include movies they watch, radio stations they listen to, social media, and their peers who introduce social norms among peers. College students’ risky behaviors can be affected by those social norms of peers, often through peer pressure. In the current study, the dynamics among peer pressure, social media, and risky behaviors among college students will be studied by interviewing undergraduate students at one of main universities in southern region in the U.S.
178

Associations Between Perfectionism, Parental Expectations, Self-Esteem, and Academic Achievement in Gifted Students

Scarbrough, Hannah 01 May 2022 (has links)
Intellectual giftedness can affect students in a variety of ways. Research often examines some of these potential effects, such as how giftedness impacts performance in school or attitude regarding academics. However, little research has been done on whether gifted students are more driven by internal pressures to succeed that they place on themselves or by external pressures to succeed that are placed on them by others. The present study examined how perfectionism (an internal pressure) and parental expectations (an external pressure) might affect a student’s self-esteem and achievement. Participants were 250 undergraduate students (M age = 20.35 years old, M GPA = 3.53) who completed an online survey. Different aspects of perfectionism had unique associations with self-esteem, whereas parental expectations were not associated with self-esteem. Perfectionism, parental expectations, and self-esteem were not associated with academic achievement. Taken together, it appears that internal pressure, specifically concern over mistakes, corresponds to lower self-esteem, whereas having high personal standards may be adaptive. Implications and future research are discussed.
179

Facial Emotional Perception, Psychosis, Antisocial Traits, and Violence in Schizophrenia

Hipol Ligot, Clarita Villafranca 01 January 2017 (has links)
Compromised social cognition, psychosis, and antisocial traits are associated with violence in individuals with schizophrenia. Facial emotional perception (FEP) has been used to measure social cognition in schizophrenia, but its relationships to psychosis, antisocial behavior, and violence have not been explored. Archival data from a sample of 38 participants ages 18-55 with schizophrenia were analyzed in a quasi-experimental design using a 2-way analysis of variance to determine the relationship of psychosis, antisocial traits, and FEP. The main factors of the analysis were psychosis, classified as either high or low, and antisocial traits, classified as high or low. The dependent variable was FEP. Additionally, logistic regression was used to determine if the recent violent behavior was related to FEP, psychosis, and antisocial traits. Results showed significant main effects for psychosis and antisocial traits and interaction between psychotic state and antisocial traits. Logistic regression identified antisocial traits as a predictor of violence. The results are consistent with previous studies showing that a deficit in social cognition is a risk factor in violence. This study shows that antisocial traits are a predictor of a recent history of violence. These findings are consistent with the theory of the mind, perceptual organization theory, and integrative emotional system theory and provide additional information about how social cognition is manifested in some adults with schizophrenia. The study contributes to positive social change by providing a basis for treatment options with schizophrenia which distinguish social cognition, psychosis and antisocial behavior and violence.
180

What It Means to Be a Man, What It Means to Be a Woman: An Exploration of Adult Gender Identity and Attitudes

Joseph, Lisel 01 January 2016 (has links)
While there is a significant body of research on the topic of gender identity and gender attitudes, the existing literature contains a number of competing theories and leaves several gaps open for exploration. Namely, there is a lack of research on adult subjects, a lack of research into the benefits of using implicit measures of gender attitudes, and more room for exploration of the potentially complex interactions between gender identity variables, gender attitudes, and adjustment. This study investigated the relationships between a number of variables that have been suggested to make up a multidimensional model of gender identity, as well as an implicit measure of gender attitudes, an explicit stereotype endorsement measure, and a measure of well-being. The study took place online and participation was open to any U.S. resident over the age of 18. The expected relationships between gender identity and gender attitude variables were not found, but a number of intriguing correlations in the data are discussed.

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