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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 48 for “"Rank Tests"”.
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Monotonicity of the Power of Two-Sample Rank Tests
Made available in DSpace on 2014-12-11T18:23:59Z (GMT). No. of bitstreams: 1 7317542.pdf: 1492503 bytes, checksum: d4bdc2447e50484e3c66d20eacf63d3f (MD5) Previous issue date: 1973
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The use of rank tests in analysis of variance
Several nonparametric tests based on ranks have been proposed to handle analysis of variance problems. But questions have been raised about the appropriateness of some procedures that are mere rank transformations of normal theory analysis of variance tests.
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A Pilot Study of the Effectiveness and Feasibility of a Brief, Online, and Self-Guided Acceptance and Commitment Therapy Intervention for Intellectual and Developmental Disability Support Staff
… feasibility questionnaire. Independent t-tests and Wilcoxon signed-rank tests indicated that the intervention significantly reduced burnout and increased psychological flexibility between-groups and within the waitlist group only. The findings demonstrate preliminary evidence for …
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The Assessment of self-esteem before and after a therapeutic milieu programme
… and quantitatively analysed using Wilcoxon Rank Sum and Signed Rank tests of significance. This analysis indicated that there was a general improvement in self-esteem of subjects after completion of the therapeutic milieu programme, while there was a significant improvement in self-esteem of …
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The effects of toy exposure on children's prosocial and antisocial behavior
… Analyses of Variance and Wilcoxon's Signed-rank tests were used to test the hypotheses. Main effects were found for toy condition and for gender. The antisocial toy condition yielded the highest rates of antisocial behavior. The prosocial toy condition yielded the highest rates of prosocial …
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Using Peer Mentors in the Clinical Setting to Reduce Anxiety in the First Semester Clinical Nursing Student
… statistics, ANOVA, Mann Whitney U, Wilcoxon Rank Tests, and correlations. Resulting data is the first step in a research trajectory expected to demonstrate peer assisted learning as an innovative clinical learning model.
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Design and Monitoring of Clinical Trials with Clustered Time-to-Event Endpoint
… endpoint based on nonparametric weighted rank tests. First, we propose closed form sample size formulas for cluster randomization trials and subunit randomization trials; accordingly, we derive the intracluster correlation coefficient for clustered time-to-event endpoint. We find that the …
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The small-sample power of some nonparametric tests
… skewness and kurtosis. II. Power of Two-Sample Rank Teats on the Equality of Two Distribution Functions. A comparative study is made of the power of two-sample rank tests of the hypothesis that both samples are drawn from the same population. The general alternative is that the variables from …
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A Systems Organizational Model Of Professional Role Development For New Apps: Building A Train The Trainer Program
… Statistical analysis, conducted using paired T-tests and Wilcoxon Signed-Rank Tests, demonstrated significant increases in self-efficacy scores for both trainers (p < 0.001) and orientees (p = 0.002). These findings suggest that structured professional role development education enhances trainer …
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Human Factors Evaluation of an In-Vehicle Active Traffic and Demand Management (ATDM) System
… Analysis of Variance (ANOVA) and Tukey-Kramer tests were performed to analyze participant eye glance durations towards the IVD and instrument cluster. Wilcoxon signed rank tests were used to draw conclusions from participant speed data and some survey responses. Several key findings were …
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Evaluation of prognostic risk factors at diagnosis and treatment outcomes in adult patients with early-stage hodgkin lymphoma in Cape Town, South Africa
… factors). Kaplan-Meier curves and log-rank tests were used to compare treatment outcomes between groups. The median age at diagnosis was 35 years and 50% of the patients were male. Most patients had stage II disease (86%) and were classified as unfavourable (76%). During the study …
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The efficacy of personal initiative training for academic and career success as a stress management intervention for university students
… relationships between variables, Wilcoxon Signed-Rank Tests to assess within-group changes, and moderation analysis to determine whether self-efficacy influenced the relationship between PI and perceived distress. Results indicated that PI training led to significant reductions in perceived …
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Assessing Symmetry in Landing Mechanics During Single-Leg and Bilateral Tasks in Healthy Recreational Athletes
… groups, tasks, and sexes with Wilcoxon Signed Rank tests (p<0.05). RESULTS: Control subjects exhibited asymmetry in hop distance (p=0.006). ACL-R subjects displayed greater asymmetry in knee flexion variables, peak forces, and peak knee extension moments during the bilateral landing (p<0.001) …
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Biomechanical Outcomes of Distinct TKA Surgical Alignments and Implant Designs
… moments in each plane. Six independent sample t-tests or Wilcoxon-Signed Rank tests in case of non-normality were conducted to determine the effect of surgical alignment technique (MA and KA) during each task (stair ascent and descent) on independent variables. Cohen’s d was used to quantify …
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VERT-Derived Jump Volume and Intensity Related to Functional Movement Quality in Female Collegiate Volleyball Players
… over time were assessed using Wilcoxon signed-rank tests. The correlations between jump metrics and movement assessment scores over time were investigated using Spearman’s rank-order correlations. The differences in each jump metric between players who did or did not demonstrate improvement in …
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Quantification of Imrt Severity Scores For Improvement of Fmea Results
… patient treatment plans using Wilcoxon Signed Rank Tests. 8/11 failure mode true severity scores were predicted by quantitative approaches and 6/11 were predicted by qualitative approaches (p</p>
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Trends in clinical presentation and treatment outcomes in a South African TTP cohort
… Services records. Kaplan-Meier curves and log-rank tests were used to evaluate remission rates overall and, by HIV status and treatment group. Logistic regression models were used to identify predictors of remission and relapse. Results: 139 patients were included, 85.6% of whom were HIV …
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Clinical Parameters Are More Predictive of Mortality in Alcoholic Hepatitis than Histopathologic Severity
… Survival analysis by Kaplan-Meier curves and log-rank tests showed no significant correlation between AHHS and 90-day survival (p=0.09), while multiple clinical scoring systems accurately stratified prognosis (p<0.018 for all). Severe neutrophil infiltration on biopsy also correlated significantly …
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The Effect of Scan Settings on the Identification of Tooth Socket Lamina Dura Surface: A CBCT Study
… and comparisons made using Wilcoxon Signed Rank Tests and Friedman’s Two-Way ANOVA (α = 0.05). Results: Although there were statistically significant differences (p < 0.05) in group and time-point discrepancies in 15 of 52 comparisons evaluated, the measured differences were low and likely …
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From Offshoring to Reshoring: A Conceptual Framework for Manufacturing Location Decisions in a Slow-Steam World
… returns were analyzed using Wilcoxon Signed-Rank tests, the structural model was tested using partial least squares structural equations modeling.</p> <p>This dissertation contributes to the global sourcing literature in several ways. First, the event study results strongly support the theory …
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