Matching Items (31)
Description
Type 1 Diabetes Mellitus (T1DM) is a chronic disease that requires maintaining tight metabolic control through complex behavioral and pharmaceutical regimens. Subtle cognitive impairments and stress response dysregulation may partially account for problems negotiating life changes and maintaining treatment adherence among emerging adults. The current study examined whether young adults with T1DM physiologically respond to psychological stress in a dysregulated manner compared to non-diabetic peers, and if such individuals also demonstrated greater cognitive declines following psychological stress. Participants included 23 young adults with T1DM and 52 non-diabetic controls yoked to T1DM participants based on age, gender, ethnicity, participant education, and maternal education. Participants completed a laboratory-based social stressor, pre- and post-stressor neurocognitive testing, provided fingerstick blood spots (for glucose levels) and salivary samples (for cortisol levels) at five points across the protocol, and completed psychosocial questionnaires. Related measures ANOVAs were conducted to assess differences between T1DM participants and the average of yoked controls on cortisol and cognitive outcomes. Results demonstrated that differences in cortisol reactivity were dependent on T1DM participants' use of insulin pump therapy (IPT). T1DM participants not using IPT demonstrated elevated cortisol reactivity compared to matched controls. There was no difference in cortisol reactivity between the T1DM participants on IPT and matched controls. On the Stroop task, performance patterns did not differ between participants with T1DM not on IPT and matched controls. The performance of participants with T1DM on IPT slightly improved following the stressor and matched controls slightly worsened. On the Trail Making Test, the performance of participants with T1DM was not different following the stressor whereas participants without T1DM demonstrated a decline following the stressor. Participants with and without T1DM did not differ in patterns of performance on the Rey Verbal Learning Task, Sustained Attention Allocation Task, Controlled Oral Word Association Task, or overall cortisol output across participation. The results of this study are suggestive of an exaggerated cortisol response to psychological stress in T1DM and indicate potential direct and indirect protective influences of IPT.
ContributorsMarreiro, Catherine (Author) / Luecken, Linda (Thesis advisor) / Doane, Leah (Thesis advisor) / Barrera, Manuel (Committee member) / Aiken, Leona (Committee member) / Arizona State University (Publisher)
Created2013
Description
This dissertation explores the history of ancestral rituals and the related political controversy in the Song China (960-1279). Considering the pivotal role played by ancestral rites in shaping Chinese identity and consciousness, this study contributes to a better understanding of how ancestral ritual has been politicized in Chinese history as a specific cultural apparatus to manipulate politics through theatrical performance and liturgical discussion. Through a contextual analysis of a variety of Song scholar-officials and their ritual writings, including memorials, private letters, and commentaries on the ritual Classics, this study demonstrates that Song ritual debates over the zhaomu 昭穆 sequence--that is, the positioning of ancestral temples and spirit tablets in ancestral temples with preparation for alternation or removal--differentiated scholar-officials into separate factions of revivalists, conventionalists and centrists. From a new perspective of ritual politics, this study reveals the discursiveness of the New Learning (xinxue新學) community and its profound influence on the Learning of the Way (Daoxue 道學) fellowship of the Southern Song (1127-1279). It examines the evolution of the New Learning fellowship as a dynamic process that involved internal tension and differentiation. Daoxue ritualism was a continuation of this process in partaking in the revivalist approach of ritual that was initiated by the New Learning circle. Nowadays, the proliferation of ritual and Classical studies crystallizes the revitalization of Confucianism and Confucian rituals in China. Taking zhaomu as a point of departure, this project provides a lens through which modern scholars can explore the persistent tension between knowledge and power by rethinking the modernization of ritual and ritual politics in contemporary China.
ContributorsCheung, Hiu Yu (Author) / Tillman, Hoyt C (Thesis advisor) / Tillman, Hoyt (Committee member) / Mackinnon, Stephen (Committee member) / Rush, James (Committee member) / Bokenkamp, Stephen (Committee member) / West, Stephen (Committee member) / Arizona State University (Publisher)
Created2015
Description
Methods to test hypotheses of mediated effects in the pretest-posttest control group design are understudied in the behavioral sciences (MacKinnon, 2008). Because many studies aim to answer questions about mediating processes in the pretest-posttest control group design, there is a need to determine which model is most appropriate to test hypotheses about mediating processes and what happens to estimates of the mediated effect when model assumptions are violated in this design. The goal of this project was to outline estimator characteristics of four longitudinal mediation models and the cross-sectional mediation model. Models were compared on type 1 error rates, statistical power, accuracy of confidence interval coverage, and bias of parameter estimates. Four traditional longitudinal models and the cross-sectional model were assessed. The four longitudinal models were analysis of covariance (ANCOVA) using pretest scores as a covariate, path analysis, difference scores, and residualized change scores. A Monte Carlo simulation study was conducted to evaluate the different models across a wide range of sample sizes and effect sizes. All models performed well in terms of type 1 error rates and the ANCOVA and path analysis models performed best in terms of bias and empirical power. The difference score, residualized change score, and cross-sectional models all performed well given certain conditions held about the pretest measures. These conditions and future directions are discussed.
ContributorsValente, Matthew John (Author) / MacKinnon, David (Thesis advisor) / West, Stephen (Committee member) / Aiken, Leona (Committee member) / Enders, Craig (Committee member) / Arizona State University (Publisher)
Created2015
Description
Missing data are common in psychology research and can lead to bias and reduced power if not properly handled. Multiple imputation is a state-of-the-art missing data method recommended by methodologists. Multiple imputation methods can generally be divided into two broad categories: joint model (JM) imputation and fully conditional specification (FCS) imputation. JM draws missing values simultaneously for all incomplete variables using a multivariate distribution (e.g., multivariate normal). FCS, on the other hand, imputes variables one at a time, drawing missing values from a series of univariate distributions. In the single-level context, these two approaches have been shown to be equivalent with multivariate normal data. However, less is known about the similarities and differences of these two approaches with multilevel data, and the methodological literature provides no insight into the situations under which the approaches would produce identical results. This document examined five multilevel multiple imputation approaches (three JM methods and two FCS methods) that have been proposed in the literature. An analytic section shows that only two of the methods (one JM method and one FCS method) used imputation models equivalent to a two-level joint population model that contained random intercepts and different associations across levels. The other three methods employed imputation models that differed from the population model primarily in their ability to preserve distinct level-1 and level-2 covariances. I verified the analytic work with computer simulations, and the simulation results also showed that imputation models that failed to preserve level-specific covariances produced biased estimates. The studies also highlighted conditions that exacerbated the amount of bias produced (e.g., bias was greater for conditions with small cluster sizes). The analytic work and simulations lead to a number of practical recommendations for researchers.
ContributorsMistler, Stephen (Author) / Enders, Craig K. (Thesis advisor) / Aiken, Leona (Committee member) / Levy, Roy (Committee member) / West, Stephen G. (Committee member) / Arizona State University (Publisher)
Created2015
Description
The purpose of this study was to examine under which conditions "good" data characteristics can compensate for "poor" characteristics in Latent Class Analysis (LCA), as well as to set forth guidelines regarding the minimum sample size and ideal number and quality of indicators. In particular, we studied to which extent including a larger number of high quality indicators can compensate for a small sample size in LCA. The results suggest that in general, larger sample size, more indicators, higher quality of indicators, and a larger covariate effect correspond to more converged and proper replications, as well as fewer boundary estimates and less parameter bias. Based on the results, it is not recommended to use LCA with sample sizes lower than N = 100, and to use many high quality indicators and at least one strong covariate when using sample sizes less than N = 500.
ContributorsWurpts, Ingrid Carlson (Author) / Geiser, Christian (Thesis advisor) / Aiken, Leona (Thesis advisor) / West, Stephen (Committee member) / Arizona State University (Publisher)
Created2012
Description
Family plays an important yet understudied role in the development of psychopathology during childhood, particularly for children at developmental risk. Indeed, much of the research on families has actually concentrated more on risk processes in individual family members or within-family subsystems. In general, important and complex associations have been found among family-related constructs such as marital conflict, parent-child relationships, parental depression, and parenting stress, which have in turn been found to contribute to the emergence of children's behavioral problems. Research has begun to emerge that certain family system constructs, such as cohesion, organization, and control may influence children's development, but this research has been limited by a focus on parent-reports of family functioning, rather than utilizing observational methods. With notable exceptions, there is almost no observational research examining families of children at developmental risk. This study examined the longitudinal relations among family risk and family system constructs, as well as how family systems constructs mediated the relations between family risk and child outcome. Further, the study examined how developmental risk moderated these relations. The sample followed 242 families of children with and without developmental risk across the transition-to-school period. Family risk factors were assessed at 5 years, using parental reports of symptomatology, parenting stress, and marital adjustment, and observational assessments of the parent-child relationship. Family system constructs (cohesion, warmth, conflict, organization, control) were measured at age 6 using structured observations of the entire family playing a board game. Child behavior problems and social competence were assessed at age 7. Results indicated that families of children with developmental delays did not differ from families of typically developing children on the majority of family system attributes. Cohesion and organization mediated the relations between specific family risk factors and social competence for all families. For families of typically developing children only, higher levels of control were associated with more behavior problems and less social competence. These findings underscore the importance of family-level assessment in understanding the development of psychopathology. Important family effects on children's social competence were found, although the pathways among family risk and family systems attributes are complex.
ContributorsGerstein, Emily Davis (Author) / Crnic, Keith A (Thesis advisor) / Aiken, Leona (Committee member) / Bradley, Robert (Committee member) / Gonzales, Nancy (Committee member) / Arizona State University (Publisher)
Created2012
Description
ABSTRACT Much of teacher feedback research is conducted in the L1 and L2 contexts. There is a paucity of research about feedback in the Teaching Chinese as a Foreign Language (TCFL) context. Particularly, little is known about teachers' feedback practices and student views of teacher feedback. The present study was undertaken to fill the research gap by focusing on teachers'written feedback. Student data from surveying 38 students was interpreted with teacher data gained from interviewing three teachers. The findings indicate that teacher written feedback, which occurred in a multiple-draft writing cycle, generally accorded with recommended feedback principles. Students responded favorably to teacher written feedback. The results also reveal discrepancies between teachers' feedback practices and student perceptions of and preferences regarding teacher feedback. The results show that students wanted more written comments from teachers, though most teachers didn't prioritize written comments. Despite teachers' practices and their inclination toward offering coded indirect error correction, students in the study expressed their preferences for direct error correction. Most students are interested in receiving teacher feedback that addresses all aspects of writing rather than primarily focusing on language accuracy. The reasons that may account for the disjuncture are also discussed in the study. The study concludes that it is important for teachers to be aware of student attitudes and expectations regarding teacher feedback. Teachers should be flexible enough to provide individualized feedback. Pedagogical implications are included in the paper in the hope of shedding light on the development of effective and helpful teacher feedback.
ContributorsChen, Jinglin (Author) / Spring, Madeline (Thesis advisor) / Oh, Young (Committee member) / West, Stephen (Committee member) / Arizona State University (Publisher)
Created2012
Description
This case study explores similarities and differences between the instructors' beliefs about oral corrective feedback and their actual practices in a summer Chinese program. This kind of feedback is beneficial for beginning college-level learners of Chinese to improve their speaking accuracy. The researcher conducted face-to-face interviews with two teachers of Chinese, focusing on their beliefs about oral corrective feedback in their language classrooms. In addition, the researcher recorded teacher-student interactions through class observation in order to analyze the teachers' actual practices of oral corrective feedback. The main findings show that the teachers hold similar beliefs on oral corrective feedback and its beneficial role in helping improve learners speaking accuracy. The fact is that they frequently provide oral corrective feedback in classroom, mostly using recasts. Implications are discussed in view of the necessity of using explicit feedback and recasts appropriately. In addition, this study demonstrates the need for specific professional development and teacher training about how to provide efficient corrective feedback.
ContributorsDong, Zhixin (Author) / Spring, Madeline K. (Thesis advisor) / West, Stephen (Committee member) / Oh, Young (Committee member) / Arizona State University (Publisher)
Created2012
Description
My study centers on the novel Katakiuchi Kidan Jiraiya Monogatari (1806-1807) by Kanwatei Onitake (1760-1818). Jiraiya Monogatari was the first literary reading book to be adapted for the kabuki stage. It was also the prototype on which Mizugaki Egao, Kawatake Mokuami, Makino Shouzou; and others based their bound picture books, kabuki, and films. The tale is composed of two revenge incidents, both of which have the same structural framework and are didactic in tone. In my study, I analyze the two revenge incidents by examining their narrative structures. Each incident has the same three-act structure: setup, confrontation, and resolution. The setup of each revenge incident introduces the main characters and their relationships and establishes the dramatic vehicle, which is an unexpected incident that sets the revenge in motion. The confrontation contains myriad non-linear inserts, plot twists, and reversals of fortune, all of which have the effect of a narrative delay. This prolongation of the outcome of a simple revenge plot allows readers the necessary space in which they can form their own judgments regarding good and evil and consider karmic cause and effect. The resolution, including the climax as well as the ending of the revenge, demonstrates the didactic notion of punishing evil and karmic effect. The two revenge incidents embody two rules, kanzen chouaku and inga, which together highlight the didacticism of Jiraiya monogatari.
ContributorsZhang, Jin (Author) / Creamer, John (Thesis advisor) / West, Stephen (Committee member) / Chambers, Anthony (Committee member) / Arizona State University (Publisher)
Created2012
Description
This dissertation focuses on the corpus of Zang Maoxun’s literary creations in The Collection from the Fubao Hall and investigates his involvement in the cultural activities of the Jinling Poetry Society. Unearthing how Zang and this Society, as self and community, played an instrumental role in creating and sustaining a network of dramatists and drama critics in the Jiangnan region, a careful review of his poems and prose shows the extent to which text preparation, commentary, and printing were at the center of his communications with his social circle. Moreover, this dissertation unpacks Zang’s contribution to the promotion of dramatic texts through a thorough examination of his ardent editorial work in revising Tang Xianzu’s The Four Dream Plays from the Jade Tea Hall, the epitome of the southern musical drama. By using Zang’s 1618 Diaochong guan edition of his adaptations as a focal point, this dissertation compares it with three late Ming editions of Tang’s plays printed in the dual colors of red-and-black ink. In light of their innovative editorial designs, and the varying evaluations formed in their pages about Zang’s editorial work, this dissertation reveals the importance of Zang’s adaptations in the history of The Four Dream Plays’ textual transmission, as well as the interplay between the tradition of drama criticism and the new technology of multicolor printing and consequent innovation in editorial principles.
ContributorsZhang, Rachel Junlei (Author) / West, Stephen (Thesis advisor) / Oh, Young (Committee member) / Ling, Xiaoqiao (Committee member) / Arizona State University (Publisher)
Created2019