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.
Results
Showing 1 to 20 of 26 for “"Wilcoxon Signed-Ranks"”.
-
Robustness And Power Of The Kornbrot Rank Difference, Signed Ranks, And Dependent Samples T-Test
… AND POWER OF THE KORNBROT RANK DIFFERENCE, SIGNED RANKS, AND DEPENDENT SAMPLES T-TEST</strong> </p> <p>by</p> <p> <strong>NORMAN N. HAIDOUS</strong> </p> <p>December 2012</p> <p> <strong>Advisor:</strong>Dr. Shlomo S. Sawilowsky</p> <p> <strong>Major:</strong>Evaluation and Research - …
-
A comparison of spatial interpretations of NASA's payload operations control center, Marshall Space Flight Center, using real world and virtual reality observations
… Comparisons were analyzed using the Wilcoxon Signed Ranks Test, and I tests. Findings revealed few differences among the real and the VR worlds. Changes to the virtual world were generally recognized.
-
Evaluation of Probabilistic Methodology for Predicting Satellite Tracking Resources
… Comparison methods include percent difference, a Wilcoxon signed ranks test and a Mann-Whitney U test.</p> <p>The Monte Carlo simulations were run for only low earth orbit (LEO) satellites in circular orbit at random altitudes ranging from 180km to 1000km, and inclinations from near equatorial to …
-
Effects of two group approaches on life satisfaction and mood of older females in nursing homes
… significant. Due to small sample size, the Wilcoxon Signed Ranks Test was performed. No statistical significance was found for GAT on life satisfaction. Results for the Paired Samples Test for the GLSNT found statistical significance for life satisfaction. A univariate ANCOVA with group …
-
An Evidence-Based Implementation Project on High Utilizers in the Emergency Department
… the education which was reflected utilizing the Wilcoxon Signed-Ranks Test with a Z=278, p < .0001, indicating that the intervention nurses scored higher on the posttest increasing their knowledge basis. Additional research is needed to understand the underlying causes that contribute to ED …
-
Analysis of Two-Year College Presidents' Ranking of the American Association of Community Colleges' Leadership Competencies
… the Freidman two-way analysis of variance by ranks led the researcher to reject the hypothesis that the competencies were equal; thus the researcher used the Wilcoxon signed ranks test to determine where the differences were located. The major finding indicated that organizational strategy is …
-
Calibration of an accelerometer to measure physical activity in preschool children: A feasibility study
… of attachment placement: wrist and waist. Wilcoxon signed ranks test was to examine the statistical difference between dominant hand and non-dominant hand (Z = 4.99, p < .000, d = -.481), whereas there was not statistical differ with left wrist and waist, back and waist (Z = -1.39, p < …
-
Speed of Human Orthodontic Tooth Movement and Reported Pain When Applied Loads are Changed
… Modified McGill Pain Questionnaire Short Form designed for orthodontic subjects, plus had maxillary impressions made for analysis of tooth movement. For a given stress, Friedman and Wilcoxon Signed Ranks tests were used to evaluate for significant effects of phase on pain score. After testing for …
-
Evaluation of a Theory-Based Farm to School Program
… agriculture education. The current study was designed with Theory of Planned Behavior (TPB) as its framework. An intervention was implemented to enhance beliefs, norms, and self-efficacy regarding FV, thus potentially increasing the intention to consume more FV. The research objectives of this …
-
A Retrospective Analysis of Maternal and Child Outcomes Following an Obesity Intervention Program
… statistics, a matched-pairs t-test, the Wilcoxon signed-ranks test, and the chi-square test. Pearson and Spearman correlations were performed to assess relationships between covariates and outcome variables, and if regression analysis assumptions were met. A backward step-wise linear …
-
Urban school challenges: Implementation and sustainability of positive behavioral interventions and supports
… and truancy data of the three school districts. Wilcoxon signed ranks tests were also conducted on pre-implementation and implementation discipline data by ethnicity and types of discipline. No statistical significance was noted for ethnicity and discipline type, but reductions in the number of …
-
Assessing Clinical Judgment Utilizing Embedded Patients In A Baccalaureate Nursing Program’s Simulation Laboratory
… reported a mode of ‘3’ for clinical judgment. A Wilcoxon Signed-Ranks test showed a statistically-significant difference between the two exams (W Statistic = 8 and W Critical = 66). Open and axial coding identified two major themes (<em>judgment</em>, and<em> scenario time</em>) and three …
-
Effects of a 10-week exercise intervention on thoracic kyphosis, pulmonary function, endurance, back extensor strength, and quality of life in women with osteoporosis
… in the control group. The results of the Wilcoxon Signed Ranks test for Osteoporosis Targeted Quality of Life survey scores, pre- and post-intervention, revealed that neither group was significantly different before and after the 10-week intervention. This study showed that a home-based …
-
The Relationship Between Transformational Leadership and the Emotional and Social Competence of the School Leader
… calculated using Spearman's rho coefficients. A Wilcoxon Signed Ranks Test was calculated to determine the significance of difference between the self-assessment and other-rater assessment of transformational leader behaviors and social and emotional competency. A multiple regression analysis was …
-
Validation of the ‘Victim Empathy Response Assessment (ii)’ (VERA-ii) with a Non-offending Adult Male Community Sample
… Questionnaire and the Story Comprehension Task. Wilcoxon signed-ranks tests demonstrated a significant difference between cognitive and affective empathy and SRL from mean baseline to mean total SRL after viewing the VERA(ii). However, Spearman’s Rho Correlations found no significant associations …
-
The validity of an accelerometer-based activity monitoring system and the consistency of locomotive activity of community-living older adults
… and BMI was conducted on this sample using the Wilcoxon Signed Ranks test. RESULTS: Three of the four gait validity ICCs were significant (p ≤ 0.019) ranging from 0.267 to 0.778. All pedaling validity variables had ICCs ≥ 0.993 The locomotive consistency study found all 6 daily gait variables …
-
Dietary Research within the Context of a Community-Based Food System
… number of items and monetary costs, based upon a Wilcoxon Signed-Ranks Test (p < .05). A second study was conducted to examine the impacts of the Heifer Alternative Spring Break (ASB) programs on Virginia Tech student's attitudes, motivations, diet, and behaviors regarding community-based food …
-
The Reliability And Validity Of The Thin Slice Technique: Observational Research On Video Recorded Medical Interactions
… full interaction coding was assessed using the Wilcoxon Sign Ranks test (nonparametric version of the Paired t-test). </p> <p> <strong>Results:</strong> Thin slice reliability on Likert scale items ranged from .762-.910 with an average IRR of .850. Friedman tests conducted on all five variables …
-
Linguistic and Cognitive Development of L2 Writing during an Intensive English for Academic Purposes (EAP) Programme.
… the course. MANOVAs, ANOVAs and non-parametric Wilcoxon signed-ranks tests were used to analyse the quantitative data, while the interviews and learning journals were transcribed and coded manually. The quantitative results suggest that despite no explicit focus on lexis and syntax in the EAP …
-
Nonparametric procedures for process control
… procedures are developed. The procedures are designed to detect any shift in the median of a sequence of observations from a specified control value. The first two procedures require that groups of g ≥ 1 observations be made sequentially on the output of the process. Then the Wilcoxon …
Page 1 of 2