Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 28 for “"Association tests."”.
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Using phenotyped but ungenotyped relatives in genetic association tests
… but ungenotyped relatives into genetic association tests. For genotypes missing completely at random (MCAR) and a quantitative outcome, Visscher and Duffy (2006) inferred the power increase due to the inclusion of ungenotyped individuals using information from relatives ' genotypes for …
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SafeGENIE: Secure and federated linear mixed model association tests
Privacy-preserving algorithms for genome-wide association studies (GWAS) promise to facilitate data sharing across silos to accelerate new discoveries. However, existing approaches do not support an important, prevalent class of methods known as linear mixed model (LMM) association tests or would …
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Exploring the Moderating Effects of Aggression on the Relationship Between Negative Urgency and Suicidal Desire
… assessment approaches such as implicit association tests may help identify risk factors by eliminating conscious underreporting. The Interpersonal-Psychological Theory of Suicidal Behavior is an empirically supported theory hypothesizing why individuals die by suicide. The theory …
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Statistical methods for genetics and genomics studies
… Genetics study : although population-based association mapping may be subject to the bias caused by population stratification, alternative methods that are robust to population stratification such as family-based linkage analysis have lower mapping resolution. In this dissertation, we …
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Haplotype-Based Association Studies: Approaches to Current Challenges
<p>Haplotype-based association studies have greatly aided researchers in their attempts to map genes. However, current designs of haplotype-based association studies lead to several challenges from a statistical perspective. To reduce the number of variants, some researchers have employed …
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Size matters : a study of English proficiency levels of educated Maltese English speakers through lexical competence
… mental lexicon, the research focused on word association in the cohort’s native Maltese and their L2, English. The results of this thesis suggest that further study into the correlation between Maltese and English responses to word association tests are likely to shed light onto the structure …
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Principled "convergence" non-coding rare variant association testing in complex disease
… are still unknown. Thus far, genome-wide association studies (GWAS) have only explained a small proportion of disease heritability, indicating that there is a large number of additional loci that contribute to complex diseases like type 2 diabetes (T2D), which is the primary case study in …
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The Effect of Gender Threat on Implicit Sexism and Stereotyping
… not). Participants then completed two Implicit Association Tests: one to assess implicit prejudice against women and one to assess endorsement of tradition gender roles. Men who were threatened (regardless of gender salience) showed more implicit prejudice against women than men who were not …
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Genetic Analysis of the PI3K/AKT/mTOR Signaling Pathway
… these regions for follow-up. Genotyping and association tests of SNPs in these genes identified four variants that were associated with two baseline PI3K/AKT/mTOR pathway activation phenotypes. These represent the first studies to find genetic variants that influence post-translational …
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Genetic variation and health in a rural Caribbean village
… historical outcomes in Dominica. Genome-wide association tests of cardiometabolic phenotypes identify a genomic region of interest downstream of the ANK3 gene that associates with BMI in Bwa Mawego, after controlling for confounding variation from ancestral population structure and …
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COGNITIVE FUNCTION IN AGING COCAINE SMOKERS
… Test Part A and B, and the Controlled Oral Word Association tests. The results therefore do not support our hypothesis, likely due to lack of power given the small sample size. Future studies should examine these aspects of cognitive function in larger samples of aging cocaine smokers.
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Cooperative learning and elaborative interrogation: effects on children's learning
… via immediate free recall, immediate matched association, 30-day, and GO-day matched association tests. A priori comparisons were made to analyze the data. For immediate free recall and immediate matched association, significant differences were found between students in the three experimental …
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Genomic Association Screening Methodology for High-Dimensional and Complex Data Structures: Detecting n-Order Interactions
… the data reduction part in MB-MDR relies on association tests. In particular, for quantitative traits, the default MB-MDR way is to use the Student’s t-test (steps 1 and 2 of MB-MDR). Also when correcting for lower-order effects during quantitative MB-MDR analysis, we intrinsically maneuver …
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Influência da manipulação do foco atencional sobre a atenção seletiva visual, tempo de reação e capacidade funcional de mulheres idosas praticantes do método Pilates
… effect size analyses (Cohen’s d) and association tests between engagement and focus type (chi-square and Cramer’s V) were applied. Results: No statistically significant group-by-time interactions were observed. However, a significant time effect was found for all assessed variables, …
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The Influence of Patient Race and Socioeconomic Status on Providers' Assessment and Treatment Recommendations for Chronic Pain
… and SES (low/high). Subjects completed Implicit Association Tests to assess implicit attitudes and feeling thermometers to assess explicit attitudes about race and SES. Repeated measures ANOVAs indicated that patient race and/or SES had main effects on all pain-related decisions and had …
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Genomics of Climatic Adaptation in Populus Trichocarapa
… We subsequently combined genotype-phenotype association tests with sliding window analysis and identified regions strongly associated with these adaptive traits. We also compared adaptive markers identified in two independent GWAS on samples across latitude and altitude transects and found a …
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Electric shock therapy and the Word Association Test
<p>The Word Association Test has been less frequently used in recent years with the advent and popularization of many new projective techniques. From a clinical viewpoint the method is limited in that it gives insufficient material for a description of the personality as a meaningful whole, …
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Explaining Young Adolescents’ Physical Activity Decision-Making Using the Prototype Willingness Model of Health Behaviour
… a significant predictor. Study 3 used implicit association tests to measure whether unconscious bias towards, and similarity to, active and inactive prototypes explained variance in physical activity. Explicit and implicit measures were only weakly correlated, but implicit bias towards active …
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Implicit and Explicit Attitudes Towards Body Images
… were then given a series of computer implicit association tests (IAT) that presented pictures supporting constructs of: muscular, obese, and skinny. These constructs were paired equally with words that supported constructs of good and bad. The mean scores of each pairings were compared and then …
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Consumer Judgment and Decision-making in Healthcare Contexts
… (traditional and single-category Implicit Association Tests) to examine the possibility of censored or unstated racial preferences of PCPs. These findings shed light on the role of race in patients' preference for physicians and have important implications for patients, providers, and …
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