Many large-scale national and international testing programs use the Rasch model to govern the construction of measurement scales that can be used to monitor standards of performance and monitor performance over time. A significant issue that arises in such programs is that once a decision has been made to use the model, it is not possible to reverse the decision if the data do not fit the model. There are two levels of question that result from such a situation. One of them involves the issue of misfit to the model. That is, how robust is the model to violations of fit of the data to the model? A second question emerges from the premise that the issue of fit to the model is a relative matter. That is, ultimately, it becomes the decision of users as to whether data fit the model well enough to suit the purpose of the users. Once this decision has been made, such as in the case of large-scale testing programs like the ones refocused to above, then the question reverts to one in which the focus is on the applications of the Rasch model. More specifically, in the case of this study, the intention is to examine the consequences of variability of fit to the Rasch model on the measures of student performance obtained from two different equating procedures. Two related simulation studies have been conducted to compare the results obtained from using two different equating procedures (namely separate and concurrent equating) with the Rasch Simple Logistic model, as data-model fit gets progressively worse. The results indicate that when data-model fit ranges from good fit to average fit (MNSQ ??? 1.60), there is little or no difference between the results obtained from the different equating procedures. However, when data-model fit ranges from relatively poor fit to poor fit (MNSQ &gt 1.60), the results from using different equating procedures prove less comparable. When the results of these two simulation studies are translated to a situation in Australia, for example, where different states use different equating procedures to generate a single comparable score and then these scores are used to compare performances amongst students and to predetermined standards or benchmarks, it raises significant equity issues. In essence, it means that in the latter situation, some students are deemed to be either above or below the standards purely as a consequence of the equating procedure selected. For example, students could be deemed to be above a benchmark if separate equating was used to produce the scale; yet these same students could be deemed to fall below the benchmark if concurrent equating is used. The actual consequences of this decision will vary from situation to situation. For example, if the same equating procedure was used each year to equate the data to form a single scale, then it could be argued that it does not matter if the results vary from occasion to occasion because it is consistent for the cohort of students from year to year. However, if other states or countries, for example, use a different equating procedure and the results are compared, then there is an equity problem. The extent of the problem is dependent upon the robustness of the model to varying degrees of misfit.

Consumer satisfaction is a central topic in marketing. In the literature, a variety of conceptual models have been developed to capture the satisfaction formation process, with the dominant framework being the disconfirmation paradigm. However, despite its widespread acceptance and support, there is still a lack of clarity, especially regarding the role and relative importance of perceived performance in determining satisfaction. It has been suggested that satisfaction research has advanced into a stage where potential moderator variables need to be examined in order to explain previous mixed findings. The current research proposes a contingency model of the satisfaction formation process, which posits that the nature of the relationships between satisfaction and its two key antecedents (i.e., perceived performance and disconfirmation) is contingent on one situational moderator (ambiguity) and two individual moderators (experience and involvement). Empirical testing of the model is in the form of a cross-sectional survey in China's mobile phone services industry using a convenience student sample obtained from one Chinese university. The results show that both disconfirmation and perceived performance have a direct impact on satisfaction under conditions of low experience or high involvement, whereas satisfaction is solely determined by perceived performance in situations of high experience or low involvement. In addition, the results also support a joint moderator influence of ambiguity and experience on the relationships between satisfaction and its antecedents, which is especially true in the case of high ambiguity and low experience.

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Three studies investigated patterns of performance as demonstrated by the serial position on the Rey Auditory Verbal Leaning Test (RAVLT). Patterns of performance were explored in a sample of genuine traumatic brain injured subjects who were litigating (TBI-LIT; N = 22) and compared to a sample of genuine traumatic brain injured subjects who were not in litigation (TBI-NONLIT; N = 22). Comparisons were also made to a sample of subjects who were depressed but not neurologically compromised (PSY-DEP; N = 24). Results demonstrated that when time for loss of consciousness was controlled for, no difference existed between the litigating and non-litigating groups on any serial position. With this in mind the TBILIT and TBI NON-LIT groups were collapsed to form one traumatic brain injured group (TBI; N = 44). Patterns of performance were then compared between the TBI group, the PSY-DEP group and a normal control (NC; N = 68) group. No differences were demonstrated between the TBI and PSY-DEP groups on any serial position however, the NC group demonstrated significantly different primacy effects than the TBI group and significantly different recency effects than both the TBI and PSY-DEP groups (Study 1). Patterns of performance relative to the serial position were also compared in a group of Alzheimers Disease (AD; N=20) and dementia(DEM; N=20) subjects. Results indicated that the DEM group demonstrated a greater primacy effect than the AD group with both groups demonstrating a greater recency effect when compared to the primacy effect but no significantly so. Patterns of performance was also explored in a group of Huntington's Disease subjects (HD; =14) with this group demonstrating a significantly reduced primacy effect as compared to a recency effect (Study 2). In the third study patterns of performance were compared in a group of subjects having sustained fiontal lobe (FL; N=21) and posterior lobe (PL; N=21) lesions to the brain. Subjects with PL lesions demonstrated a signifckntly greater primacy effect as compared to the FL group with both groups demonstrating a reduced recency effect. Comparisons were also made between the PL and FL groups with normal control groups (FL-NC; N = 21: PL-NC; N = 21) and results indicated that the FL group demonstrated a significantly reduced primacy and recency effect when compared to the normal control group. When comparisons were made between the PL and a normal control group, the PL group demonstrated a significantly reduced recency effect as compared to normal controls. Pattern of performance were also explored in a small sample of subjects with diffuse DIFF; N=6) damage to the brain and results demonstrated that this group displayed a reduced recency effect as compared to the primacy effect (Study 3). Overall, when examining the serial position effects across all experimental groups, subjects who had sustained a traumatic injury to the brain or who were depressed all demonstrated a greater primacy effect as compared to the recency effect by recalling more words on that position. This contrasted the pattern of performance which emerged with various dementing processes where more words were recalled in the recency position as compared to the primacy position. Results for all studies were analyzed using MANOVA followed by the Sheffe procedure.

Thesis (Ph. D.)--University of Missouri-Columbia, 2008. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on July 27, 2009) Includes bibliographical references.

Thesis (M.A. in Security Studies (Homeland Security and Defense))--Naval Postgraduate School, September 2008. / Thesis Advisor(s): Simeral, Robert. Second Reader: McCreary, John. "September 2008." Description based on title screen as viewed on May 7, 2010. DTIC Descriptor(s): Terrorism, Rails, Passengers, Military Intelligence, Information Exchange, Theses, Abstracts, Case Studies, Surveys, Personnel, Law Enforcement, Models, Organizations, Nations, Railroads, Infrastructure, Methodology Author(s) subject terms: Passenger Rail; Private Sector; Intelligence; Intelligence Sharing; Sources; Patterns; Nodes; Nature; Pathways; Decision Makers; Psychology; Networks; Network Analysis; Social Network Analysis; Organizational Network Analysis; Strategy; Megacommunities; Informal Networks; Requirements; Priorities; Multi-Discipline; Dissemination; NYPD SHIELD; British Transport Police; Culture; Multiculturalism; Governance; Collaborative Partnerships; Foreign Intelligence; Liaison. Includes bibliographical references (p. 167-172). Also available in print.

This thesis is an exercise in applied methodology. Ideas in the history and philosophy of science which have proved to be influential in the methodology of economics, and in shaping economists' self-image in this regard, are selected for closer analysis and criticism. The main ideas that are addressed are those of empiricism, with emphasis on the methodological falsificationism of Karl Popper and Imre Lakatos, and Laudan's problem solving model of scientific progress . The thesis examines the relationship between empirical evidence, in the form of both econometric test results and stylized facts, and the development of theories about exchange rates and the open economy. This analysis begins with Cassel's formulation of purchasing power parity theory in 1916, through the elasticities, absorption, and Mundell-Fleming models of exchange rates and the balance of payments, up to the present day monetary and asset market models. This is done with regard to the broad methodological issues examined earlier in the thesis. Some of the main empirical and methodological difficulties in testing such theories are addressed, with particular reference to the role played by the Duhem-Quine thesis and the ceteris paribus assumption. Although some of these difficulties may be regarded as a matter of degree compared to similar problems in the natural sciences, it is argued that this difference is significant for the workability of falsification in economics . Moreover, the presence of hypotheses about expectations in many economic theories appears to be a substantive difference such that the difficulties posed by the Duhem-Quine thesis apply with much greater force in a social science like economics. The main conclusions are that neither the Popperian nor Lakatosian versions of falsification are seriously practiced in the area of exchange rate economics and that, unlike the position taken by advocates of falsification such as Mark Blaug, it would be inappropriate and misguided to do so. A tentative case is made, with some reference to the theories surveyed in this thesis, for the possibly greater relevance of Laudan' s more pragmatic problem solving model for the methodology of economics, particularly as regards his analysis and emphasis on conceptual problem solving in the progress of knowledge.

The purpose of the analysis is to make a theoretical contribution in two related fields of international relations research. Firstly, the concepts of complex interdependence and international regimes are critically examined with particular reference to the development of existing theories of regime creation and change. The role of organisation theory in encouraging the development of a new process based model with which to analyse the formation and alteration of international regimes is introduced. Secondly, by way of an analysis of the failure of an armaments collaboration regime to evolve in the period between 1949 and the late 1960's in the North Atlantic community of states, a vital component of the national security policies of the states involved will be studied from an essentially inter-organisational perspective. The issue area of armaments collaboration, and the complex of actors involved, represent a real challenge to regime analysis and especially the assumptions which are inherent in the theory of hegemonic stability. The role of hegemonic actors in the formation and maintenance of regimes, and the implications of this for the armaments collaboration issue area, are particularly important in this regard. The study aims to highlight the extent to which the prerogatives of states and governmental actors in areas of "high politics" have been constrained by transnational activities or bodies. The emergence of American dominance in the armaments collaboration issue area since 1945, and the prospects for a European alternative to such dominance, is one of the major foci of the analysis. The evolution, development and role, if any, of informal regimes in this area will be examined with particular reference for changing patterns in armaments collaboration between 1949 and the late 1960's.