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 49 for “"Under-reporting"”.
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Debiasing Cyber Incidents – Correcting for Reporting Delays and Under-reporting
… key problems in the cyber insurance industry – reporting delays and under-reporting of cyber incidents. Both problems are important to understand the true picture of cyber incident rates. While reporting delays addresses the problem of delays in reporting due to delays in timely detection, …
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Reasons for concussion under-reporting in varsity athletes: a mixed methods approach
… time away from class and sport, and low reporting rates among athletes contribute to poor recovery rates and potential long-term consequences. The purpose of this study was to utilize a mixed-methods approach to examine concussion education, attitudes, and reporting intention and …
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Deciding to Play: Exploring Why Adolescent Athletes Under-report Sport-related Concussions using a Mixed Methods Approach
… of concussion. However, many adolescents under-report SRC symptoms, but the scope of under-reporting for this population is not well understood, nor are the underlying motivations for (under)reporting. It is necessary to interrogate the relationship between SRC knowledge and reporting and …
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Immigration and Crime: A Microeconometric Study
… issue that afflicts leading models for under-reported count data. It also provides some tips for practitioners who intend to use these models in applied research. These findings are important for this thesis, since estimators that deal with under-reporting are considered in Chapter 2. …
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Bayesian approach to inference and variable selection for misclassified and under-reported response models.
… in logistic regression and non-differential under-reporting in Poisson regression. Differential misclassification and differential under-reporting are also addressed but in less detail. We then develop a Bayesian approach to select significant covariates while accounting for the partial …
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Essays in Applied Labor and Health Economics
… first essay, Silent Alarms: Workplace Injuries Under-Reporting in Italy, investigates the phenomenon of workplace injuries under-reporting using administrative microdata from the Italian National Institute for Insurance against Accidents at Work (INAIL). Exploiting fatal workplace accidents as …
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Empirical Essays on the Economics of Education.
… built schools. Chapter 4 examines how income under-reporting could lead to biases in estimating returns to education for the self-employed. As the first step, I infer the true self-employment income following an expenditure-based approach. An average self-employed worker's reported earnings …
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Estimating fertility and childhood mortality for the western region of Ghana from pregnancy history data
… However, pregnancy history data suffer from under-reporting, event misplacement and age mis-statement errors; and these off-set some of the advantages of the method. The observed rates from the study area gave an implausible impression of a rise and fall in fertility and childhood mortality …
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Estimating fertility and childhood mortality for the western region of Ghana from pregnancy history data
… However, pregnancy history data suffer from under-reporting, event misplacement and age mis-statement errors; and these off-set some of the advantages of the method. The observed rates from the study area gave an implausible impression of a rise and fall in fertility and childhood mortality …
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An examination of adverse drug reaction reporting to the yellow card scheme
… in 209 hospitals were surveyed about ADR reporting schemes, the priority given to ADR reporting, and attitudes towards ADR reporting. ADR reporting had a low managerial priority. Local reporting schemes were found to be operating in 37% trusts, but there were few plans to start new …
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Sources of error and bias in the assessment of dietary intake : 24-hour recalls and food records
… The first study was designed to consider whether reporting error is dependent on individual subject characteristics such as ethnicity, body mass, body fatness, age and education, or whether it is due to the dietary assessment tool (i.e., the 24-hour recall). In this study 118 women (25-55 years …
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Pharmacovigilance study using Electronic Medical Records
Data from the spontaneous reporting system (SRS) has been used to detect the causal relationship between drugs and adverse drug reactions. However, SRS has limitations, such as the lack of denominator data of drug exposure, significant under-reporting problems, and time-consuming efforts and costs. …
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Enumerating and estimating maternal and neonatal deaths in the Western Cape Province, South Africa
… to estimate maternal and neonatal mortality under-reporting in the Western Cape province. Based on these models, maternal and neonatal mortality under-reporting were estimated at 45.6% and 17.7% over the full 4-year period respectively. The last two results chapters focused on determining …
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Generating Prevalence Estimates of Sensitive Behaviors through List Randomization: Survey Experiment among Indian Males
<p>Survey respondents may under-report or misreport sensitive behaviors due to social desirability bias. List randomization is an indirect way of asking questions which allows respondents to answer sensitive questions without the surveyor knowing their actual response. This has emerged as a new …
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Methods for Exploring Heterogeneity in Systematic Reviews of Randomized Controlled Trials
… revealed that these trials are regularly under reporting important aspects of the intervention. Next, the second project showed that there are many resources providing suggestions for investigating clinical heterogeneity in systematic reviews of controlled clinical trials and though there …
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An evaluation of the 1987 Texas Senate Bill 1160: The effectiveness of legislated accountability requirements for nurses
… practice within the State of Texas. Mandatory reporting and peer review were examined as mechanisms to promote accountability. This study utilized a nonexperimental, explanatory evaluation research design. Data sources included record abstracts, interviews and responses to a questionnaire. Data …
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Novel techniques for the in situ detection of bacteria on salad leaf surfaces
… spatial and temporal patterning of colonisation under differing conditions. Salmonella enterica serovar Typhimurium mutants defective in curli fimbriae production were used to assess the role of curli in attachment to abiotic surfaces and leaves. Viability determination of potential viable but …
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Communicable Diseases Epidemiology
… (AIR), and explored reasons associated with under-reporting. Our estimate of true coverage was 96.2% with a 95% Confidence Interval 95.9%-96.4%; 2.1% higher than AIR reported coverage of 94.1%. The under-reporting was mainly due to data errors at the provider level and duplicate records. …
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Communicable Diseases Epidemiology
… (AIR), and explored reasons associated with under-reporting. Our estimate of true coverage was 96.2% with a 95% Confidence Interval 95.9%-96.4%; 2.1% higher than AIR reported coverage of 94.1%. The under-reporting was mainly due to data errors at the provider level and duplicate records. …
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Measuring Food Volume and Nutritional Values from Food Images
… technology like smartphones may enhance the under-reporting issue in dietary intake consumption. In this thesis, we propose a Food Recognition System (FRS) for calories and nutrient values assumption. The user employs the built-in camera of the smartphone to take a picture of any food before …
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