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 35 for “"Logistic Models"”.
-
The Impact of Sample Size, Prevalence, Estimation Method and Other Factors When Estimating Multilevel Logistic Models
… size guidelines for binary outcome multilevel models are rare, despite well-established rules-of-thumb for continuous outcome multilevel models. When considering requisite sample sizes for designing studies utilizing such models, applied practitioners would be remiss in failing to take into …
-
Calibration Efficacy of Three Logistic Models to the Degrees of Reading Power Test Using Residual Analysis
… response model called the Rasch or one-parameter logistic model. The relationship between the use of the Rasch model in calibration of the DRP and the use of the DRP as a component of the Virginia Literacy Passport Testing Program (LPT) is addressed. Analyses concentrate on sixth grade students …
-
Multinomial Link Models
We propose a new family of regression models for analyzing categorical responses, called multinomial link models. It consists of four classes, namely, mixed-link models that generalize existing multinomial logistic models and their extensions, two-group models that can incorporate the observations …
-
Bodies in Contempt: A Mixed Methods Study of Federal ADA Employment Cases
… type and analyzed using multinomial logistic models. Of those 200 cases, 34 were selected for in depth qualitative analysis. This study finds that disability type and gender do have an influence on the type of discrimination someone is likely to experience. In addition, the …
-
NABLA Fractional Calculus and Its Application in Analyzing Tumor Growth of Cancer
… data of tumor growth for twenty-eight mice. The models contain either three parameters (Gompertz, Logistic) or four parameters (Weibull, Richards). For each model, we consider continuous, discrete, continuous fractional and discrete fractional forms. Nihan Acar who is a former graduate student in …
-
Marriage, motherhood, childcare arrangements and work: female labor force participation and informal employment under Chinese economic reform
… 2009 and 2011) with multilevel mixed effect logistic models and multinomial logistic models. I find a negative marriage effect on women’s labor force participation which is significant only at the beginning period of marriage transition. For women who are already employed, marriage does not …
-
Goodness-of-Fit for Length-Biased Survival Data with Right-Censoring
… investigated with Weibull, log-normal and log-logistic models. Algorithms detailing how to efficiently generate right-censored length-biased survival data of these parametric forms are given. Simulation is employed to assess the effects of sample size and censoring on the power of the test. …
-
Habitat use by nongame birds in central Appalachian riparian forests
… xeric forest, and mature hardwoods generalist. Logistic models were developed to predict the number of species in each assemblage that were present and the presence of each species at each station based on the habitat characteristics at the site. Regression models were developed to predict the …
-
Effect of Pavement Condition on Traffic Crash Frequency and Severity in Virginia
… Negative Binomial, Least Square and Nominal Logistic Models were developed, showing that the CCI value is a significant factor to predict the number of crashes, and that it has different effect for different values of AADT. The result of this study is a substantial step towards developing an …
-
An analysis of fertility differentials in Liberia and Ghana using multilevel models
… explanations of fertility, statistical models of fertility have rarely included an assessment of community effects.<br/><br/>The method of analysis used is multilevel modelling. This involves fitting variables measured at the woman level, variables measured at the community level and …
-
Modelagem matemática do crescimento somático e mortalidade do ouriço-do-mar Cassidulus mitis Krau, 1954 (Echinoidea: Cassidulidae)
… growth curves defined by four different models by means of non-linear regressions (Brody-Bertalanffy, Richards, Gompertz and logistic models), and to estimate the natural mortality of this C. mitis population. The evaluation of the models was accomplished by (1) the analysis of the sum of …
-
Graduation rates, success and high school quality.
… graduation. Ordinary least squares regression models, and hierarchical linear models are run to assess the relative effect of individual level variables and institutional level variables on students' undergraduate G.P.A. Binary logistic models and multinomial models are run to predict the …
-
Properties Of Logistic Regression Models With Correlated Observations
The correlated logistic regression model, a new model for correlated binary observations in the presence of covariates, is introduced and its relationship with other logistic models established. Comparisons are made with other models for correlated binary outcomes, particularly those that allow …
-
Empirical Methods for Evaluating Vulnerability Models
… systematically validate empirical vulnerability models?”. Based on the survey of past studies about the vulnerability discovery process, the dissertation has pointed out several critical issues in the traditional methodology for evaluating the performance of vulnerability discovery models (VDMs). …
-
Does process quality of inpatient care matter in potentially preventable readmission rates?
… of care. We used multivariate hierarchical logistic models, clustered by hospitals, to examine the relationship between condition-specific, risk-adjusted, thirty-day PPR rates and process quality of inpatient care, after taking clinical and socio-demographic characteristics of patients and …
-
Does Private School Competition Improve Public School Performance? The Case of Nepal
… and public school performance using OLS and logistic models. The study adopts the propensity score matching technique to account for the selection bias problem. The second part of this dissertation attempts to explore the impact of private school competition on public school performance using …
-
Leg ulceration: An exploration of the role of socio-economic factors in the epidemiology, access to health care and outcomes.
… GPRD and THIN primary care databases. Regression models were undertaken to quantify the relationship between variables and leg ulcer rates. Multilevel logistic models were undertaken to examine three aspects of guideline recommended care in the cohort of patients diagnosed with incident venous leg …
-
Statistical methods for longitudinal medical data with applications
… data. They range from generalized mixed- effect models, growth and evolution modeling (often combined with the mixed- effects structures), to time-to-events analyses. However, such statistical methodologies might sometimes involve complicated issues to deal with, especially those related to …
-
Characterization of COVID-19 Vaccine Hesitancy among Essential Workforce Members of a Large Urban Hospital in Los Angeles, CA
… 1235(96%) completing the survey. Hierarchical logistic regression models were constructed to predict our outcome variable of vaccine hesitancy. Demographic factors and attitudes about the hypothetical COVID-19 vaccine were included in our hierarchical logistic models. Attitudes were assessed …
-
Central arterial stiffness is associated with cognitive decline and cardiovascular disease manifestation in cancer survivors in the Framingham Heart Study
… memory) were evaluated. Multivariable linear and logistic regression models determined the relationship between cfPWV and cognitive decline and MCI. Multivariate Cox Regression related cfPWV and cognitive function to the risk of CVD diagnosis and all-cause mortality. Multivariate models were …
Page 1 of 2