The purposes of this study were to develop a notational analysis system to evaluate volleyball setting performance independent of the actions of the hitter and to use the data to develop a Markovian transitional matrix that would make known the probabilities of specific outcomes from each setting scenario. Setting performance was analyzed based on the sets distance from the net, height of the set, and position of the set in relation to the hitter as viewed from 13 filmed competitions of a Division I intercollegiate women's volleyball team. Data from the notation of 1353 sets were used to develop a Markovian transitional matrix. The data indicated that 25 different setting scenarios occurred. Overall, sets within 3-5 feet from the net resulted in the highest probability of a point and the lowest probability of a point for the opponent. Low sets, whether inside or outside in relation to the hitter also resulted in a high probability of winning a point. High sets, whether inside or outside in relation to the hitter, resulted in the lowest probability of success and the highest probability of a point for the opponent. A notational analysis system such as described in this study can effectively be used by coaches to evaluate setting performance, provide effective feedback, develop team strategies and style of play, and allocate practice time.

Establishing valid and reliable passing scores is a vital activity for any examination used to make classification decisions. Although there are many different approaches to setting passing scores, this thesis is focused specifically on the Angoff standard setting method. The Angoff method is a test-centric classical test theory based approach to estimating performance standards. In the Angoff method each judge estimates the proportion of minimally competent examinees who will answer each item correctly. These values are summed across items and averages across judges to arrive at a recommended passing score. Unfortunately, research has shown that the Angoff method has a number of limitations which have the potential to undermine both the validity and reliability of the resulting standard. Many of the limitations of the Angoff method can be linked to its grounding in classical test theory. The purpose of this study is to determine if the limitations of the Angoff could be mitigated by a transition to an item response theory (IRT) framework. Item response theory is a modern measurement model for relating examinees' latent ability to their observed test performance. Theoretically the transition to an IRT-based Angoff method could result in more accurate, stable, and efficient passing scores. The methodology for the study was divided into three studies designed to assess the potential advantages of using an IRT-based Angoff method. Study one examined the effect of allowing judges to skip unfamiliar items during the ratings process. The goal of this study was to detect if passing scores are artificially biased due to deficits in the content experts' specific item level content knowledge. Study two explored the potential benefit of setting passing scores on an adaptively selected subset of test items. This study attempted to leverage IRT's score invariance property to more efficiently estimate passing scores. Finally study three compared IRT-based standards to traditional Angoff standards using a simulation study. The goal of this study was to determine if passing scores set using the IRT Angoff method had greater stability and accuracy than those set using the common True Score Angoff method. Together these three studies examined the potential advantages of an IRT-based approach to setting passing scores. The results indicate that the IRT Angoff method does not produce more reliable passing score than the common Angoff method. The transition to the IRT-based approach, however, does effectively ameliorate two sources of systematic error in the common Angoff method. The first source of error is brought on by requiring that all judges rate all items and the second source is introduced during the transition from test to scaled score passing scores. By eliminating these sources of error the IRT-based method allows for accurate and unbiased estimation of the judges' true opinion of the ability of the minimally capable examinee. Although all of the theoretical benefits of the IRT Angoff method could not be demonstrated empirically, the results of this thesis are extremely encouraging. The IRT Angoff method was shown to eliminate two sources of systematic error resulting in more accurate passing scores. In addition this thesis provides a strong foundation for a variety of studies with the potential to aid in the selection, training, and evaluation of content experts. Overall findings from this thesis suggest that the application of IRT to the Angoff standard setting method has the potential to offer significantly more valid passing scores.

No abstract provided. / Thesis / Bachelor of Arts (BA)

Stroke survivors in low-resource settings like Rwanda often face high levels of disability, and access to rehabilitation care is limited. To effectively allocate resources, it is crucial to understand and address the most significant concerns of stroke survivors and explore contextually appropriate approaches to post-stroke care. We conducted a needs assessment survey of 337 patients from six hospitals in Rwanda, collecting data at discharge and three months post-stroke. Rwandan stroke survivors have similar unmet functional needs as those in high-resource settings. However, over half of the participants still reported moderate to severe mobility, usual activities, and social/recreational activities needs at three months post-discharge. Stroke survivors indicate that limited access to services was a significant barrier to addressing these needs. Community-based interventions may be an important method for addressing these needs; however, rehabilitation services are limited, warranting the need to consider alternative strategies to address these needs. The thesis explores the potential of involving community health workers (CHWs) in providing rehabilitation interventions for stroke survivors in community settings. Although the effectiveness of CHWs in providing physical rehabilitation interventions in low-resource settings remains uncertain and sustainability of these interventions outside the studied context is also unclear. Subsequent the use of CHWs for post-stroke rehabilitation is a worthwhile endeavor. To facilitate the implementation of CHW-delivered interventions, two crucial steps were considered: the development of an intervention and establishing an operational team that will ensure implementation success. A multi-phased process was used to design a new evidence-informed post-stroke community-level mobility intervention suitable for low-resource settings. The Rehabilitation Treatment Specification System enabled the intervention design and description toward facilitating its accurate replication. The next step is to test the intervention’s feasibility, effectiveness, and implementation in low-resources settings. / Thesis / Doctor of Philosophy (PhD) / The issue of post-stroke disability is significant in Rwanda due to limited resources for stroke survivors. To improve the resources available for stroke survivors in such settings, it is important to understand their specific needs and explore alternative approaches to provision of interventions. We surveyed 337 patients from six hospitals in Rwanda to describe their functional unmet needs after stroke and at three months. Within 90 days of stroke, Rwandan stroke survivors have more moderate to severe functional needs in almost all usual activities, which is twice compared to post-stroke unmet needs for stroke survivors living in areas with post-stroke resources. Three months after leaving the hospital, over half of the participants still have moderate to severe functional needs in mobility and other usual activities, working, and social/recreational activities. Rwandan stroke survivors identified that not being able to use therapy services made it difficult to address these needs. These data indicate it is crucial to focus on community-based interventions to address the needs of stroke survivors. In my research, I investigated whether Community Health Workers (CHWs) could administer rehabilitation treatment in resource-limited areas. Although the effectiveness of physical rehabilitation by CHWs is uncertain, there is potential for CHWs to participate in delivering rehabilitation. It is worth considering the use of CHWs for post-stroke rehabilitation. In order to successfully implement CHW-delivered interventions, two important steps were considered. First, an intervention was developed. Second, an operational team is being established to ensure the intervention’s success. The process of designing a new evidence-informed post-stroke community-level mobility intervention suitable for resource-limited areas, consisted of multiple phases. The Rehabilitation Treatment Specification System was used to design and describe the intervention accurately so that it could be replicated easily. The next phase involves examining if the intervention is practical, efficient, and can be successfully implemented in areas with limited resources.

No description available.

No description available.

No description available.

Background: Providing examinee performance data is a common procedural modification in modified-Angoff standard setting exercises. Results of research examining the impact of the practice are mixed, and despite the frequency with which this procedural modification is done, the overall impact on the outcomes is not well understood. This research presents a large-scale evaluation of the impact of providing performance data in the context of operational standard setting exercises for a medical licensing examination program. Methods: Data from a total of 18 independent standard setting panels across three different examinations were analyzed to evaluate whether and how the provision of performance information impacted the resulting cut scores. Results: Significant cut-score changes were found between initial and final judgments for all panels. A decrease in standard deviation between initial and final judgments for all panels was indicative of the convergence of judgments following the provision of data, and a lack of systematic changes in final cut scores suggested that judges were not simply changing their content-based judgments to align with the normative data. Both findings provide important procedural validity evidence for the standard setting process. Implications: The current data set (replications of the procedure within a single cycle, across cycles for an individual examination, and across multiple examinations) allowed for the most comprehensive evaluation of this topic that has been described to date and provides valuable insight into an issue that is relevant to many testing contexts. / Educational Psychology

Anxiety is one of the most common mental health disorders in the U.S. and is becoming increasingly common and problematic for college students across the country. Building on research conducted at single universities, we used a large national data set from the Center for Collegiate Mental Health (CCMH) and compared self-reported levels of anxiety amongst various groups of college students across the U.S., as well as the prevalence of comorbidity between anxiety reported on the generalized anxiety subscale of the Counseling Center Assessment of Psychological Symptoms (CCAPS) and other mental health concerns. We found that a number of self-reported variables (e.g., considered attempting suicide, experienced traumatic event, non- suicidal self-injury, etc.) on the CCAPS had a positive correlation with anxiety levels at intake. Interestingly, we found that those who participated in organized college athletics and those who are international students were found to have lower anxiety at intake than others. We further found that participants from certain demographic backgrounds had higher levels of anxiety than others. Notably, participants who reported they were born female had higher levels of anxiety than those born male. Similarly, women and transgender individuals had higher anxiety levels than men, and those who self-identified their gender identity had higher anxiety scores than women, men, and transgender individuals. Our results also indicate that, at intake, those who self-identified in their sexuality and identified as bisexual reported the highest levels of anxiety compared to those who identified as lesbian, questioning, gay, or heterosexual. Our model, which contained the variables sexual orientation, gender identity, marijuana use, experienced traumatic event, considered attempting suicide, non-suicidal self-injury, current financial situation, prescribed medication for mental health concerns, and emotional support from social network, was the best fit that most parsimoniously described which variables had the greatest impact on anxiety levels at intake. Finally, our results indicate that there is a relationship between generalized anxiety symptoms and other presenting concerns (distress, depression, social anxiety, hostility, eating concerns, substance use). Given our study's large sample size, we provide more generalizable data than single university studies and provide clinical and research recommendations.

The goal of this dissertation is to test the agenda-setting theories of John Kingdon and Frank Baumgartner/Bryan Jones in terms of applicability. Universal service policy and the 1996 Telecommunications Act serve as the test case. Case study methodology guides the dissertation and employs a variety of methods including the quantitative and qualitative techniques used by John Kingdon and by Frank Baumgartner/Bryan Jones. These methods involve content analysis and the coding of media articles, an analysis of congressional hearings and government reports, and a review of scholarly literature on topics related to the policy-making in general, and telecommunications policy development, in particular. Universal service was selected for legislative action because it was bound up with telecommunications legislation, which required revision. Although some policy-makers preferred a market solution (that is the elimination of subsidized telecommunication services), universal service remained part of the telecommunications policy revision. Reasons include a new issue definition accompanied by a compelling image (information superhighway), the support of rural senators, and presidential leadership. With regard to fundamental differences between the Kingdon and Baumgartner/Jones' theories Kingdon's premise regarding the impact of cyclical events and systematic indicators has more applicability than Baumgartner and Jones' punctuated equilibria model of policy change. In addition, unlike Kingdon's research results, which indicate the media have a minor role in agenda-setting, Baumgartner and Jones' media attention indicators of policy change demonstrated a similar pattern to the universal service media indicators. The influence of interest groups is another point of difference. The universal case as with Baumgartner and Jones' research results that interest groups were major actors in setting the policy agenda. The contribution of this dissertation is to suggest elements of a new integrated model for the study of agenda-setting that incorporates aspects of the work of Kingdon and Baumgartner/Jones. / Ph. D.