Matching Items (4)
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- All Subjects: Complexity
- All Subjects: Science--Philosophy.
- Creators: Armendt, Brad
Description
This is a study of scientific realism, and of the extent to which it is undermined by objections that have been raised by advocates of various forms of antirealism. I seek to develop and present a version of scientific realism that improves on past formulations, and then to show that standard antirealist arguments against it do not succeed. In this paper, I will first present my formulation of scientific realism, which conceives of theories as model-based and as fundamentally non-linguistic. I advocate an epistemic position that accords with indirect realism, and I review and assess the threat posed by theses of underdetermination. Next, I review and discuss three important views: the antirealist constructivist view of Thomas Kuhn, the realist view of Norwood Hanson, and the antirealist constructive empiricist view of Bas van Fraassen. I find merits and flaws in all three views. In the course of those discussions, I develop the theme that antirealists' arguments generally depend on assumptions that are open to question, especially from the perspective of the version of realism I advocate. I further argue that these antirealist views are undermined by their own tacit appeals to realism.
ContributorsNovack, Alexander Dion (Author) / Armendt, Brad (Thesis advisor) / Creath, Richard (Committee member) / French, Peter (Committee member) / Arizona State University (Publisher)
Created2013
Description
The field of biologic research is particularly concerned with understanding nature's complex dynamics. From deducing anatomical structures to studying behavioral patterns, evolutionary theory has developed greatly beyond the simple notions proposed by Charles Darwin. However, because it rarely considers the concept of complexity, modern evolutionary theory retains some descriptive weakness. This project represents an explorative approach for considering complexity and whether it plays an active role in the development of biotic systems. A novel theoretical framework, titled the Genesis Mechanism, was formulated reconsidering the major tenets of evolutionary theory to include complexity as a universal tendency. Within this framework, a phenomenon, referred to as "social transitioning," occurs between higher orders of complexity. Several potential properties of social transitions were proposed and analyzed in order to validate the theoretical concepts proposed within the Genesis Mechanism. The successful results obtained through this project's completion help demonstrate the scientific necessity for understanding complexity from a more fundamental, biologic standpoint.
ContributorsMcAuliffe, Jacob (Author) / Laubichler, Manfred (Thesis director) / Armendt, Brad (Committee member) / Barrett, The Honors College (Contributor)
Created2013-05
Description
Students may be situated within complex systems that are nested within each other. This complexity may also envelope institutional structures that lead to the socio-economic reification of student post-secondary opportunities by obscuring positive goals. This may be confounded by community misunderstandings about the changed world that students are entering. These changes include social and economic factors that impact personal and economic freedoms, our ability to live at peace, and the continuing trend of students graduating high school underprepared.
Building on previous cycles of action research, this multi-strand mixed-methods study examined the effects of the innovation of the I am College and Career Ready Student Support Program (iCCR). The innovation was collaboratively developed and implemented over a 16-week period using a participatory action research approach. The situated context of this study was a new high school in the urban center of San Diego, California. The innovation included a student program administered during an advisory period and a parent education program.
Qualitative research used a critical ethnographic design that analyzed data from artifacts, journals, notes, and the interviews of students (*n* = 8), parents (*n* = 6), and teachers (*n* = 5). Quantitative research included the analysis of data from surveys administered to inform the development of the innovation (*n* = 112), to measure learning of parent workshop participants (*n =* 10), and to measure learning, hope, and attitudinal disposition of student participants (*n* = 49). Triangulation was used to answer the studies’ four research questions. Triangulated findings were subjected to the method of crystallization to search for hidden meanings and multiple truths.
Findings included the importance of parent involvement, the influence of positive goals, relational implications of goal setting and pathway knowledge on agentic thinking, and that teacher implementation of the innovation may have influenced student hope levels. This study argued for a grounded theory situated within a theoretical framework based upon Snyder’s Hope Theory and Bronfenbrenner’s Ecological System Theory. This argument asserted that influence on pathway and agency occurred at levels of high proximal process with the influence of goal setting occurring at levels of lower proximal process.
Building on previous cycles of action research, this multi-strand mixed-methods study examined the effects of the innovation of the I am College and Career Ready Student Support Program (iCCR). The innovation was collaboratively developed and implemented over a 16-week period using a participatory action research approach. The situated context of this study was a new high school in the urban center of San Diego, California. The innovation included a student program administered during an advisory period and a parent education program.
Qualitative research used a critical ethnographic design that analyzed data from artifacts, journals, notes, and the interviews of students (*n* = 8), parents (*n* = 6), and teachers (*n* = 5). Quantitative research included the analysis of data from surveys administered to inform the development of the innovation (*n* = 112), to measure learning of parent workshop participants (*n =* 10), and to measure learning, hope, and attitudinal disposition of student participants (*n* = 49). Triangulation was used to answer the studies’ four research questions. Triangulated findings were subjected to the method of crystallization to search for hidden meanings and multiple truths.
Findings included the importance of parent involvement, the influence of positive goals, relational implications of goal setting and pathway knowledge on agentic thinking, and that teacher implementation of the innovation may have influenced student hope levels. This study argued for a grounded theory situated within a theoretical framework based upon Snyder’s Hope Theory and Bronfenbrenner’s Ecological System Theory. This argument asserted that influence on pathway and agency occurred at levels of high proximal process with the influence of goal setting occurring at levels of lower proximal process.
ContributorsLoescher, Shawn Thomas (Author) / Mertler, Craig A. (Thesis advisor) / Jordan, Michelle E. (Committee member) / Moore, R. V. (Committee member) / Arizona State University (Publisher)
Created2018
Description
During the 1960s, the long-standing idea that traits or behaviors could be
explained by natural selection acting on traits that persisted "for the good of the group" prompted a series of debates about group-level selection and the effectiveness with which natural selection could act at or across multiple levels of biological organization. For some this topic remains contentious, while others consider the debate settled, even while disagreeing about when and how resolution occurred, raising the question: "Why have these debates continued?"
Here I explore the biology, history, and philosophy of the possibility of natural selection operating at levels of biological organization other than the organism by focusing on debates about group-level selection that have occurred since the 1960s. In particular, I use experimental, historical, and synthetic methods to review how the debates have changed, and whether different uses of the same words and concepts can lead to different interpretations of the same experimental data.
I begin with the results of a group-selection experiment I conducted using the parasitoid wasp Nasonia, and discuss how the interpretation depends on how one conceives of and defines a "group." Then I review the history of the group selection controversy and argue that this history is best interpreted as multiple, interrelated debates rather than a single continuous debate. Furthermore, I show how the aspects of these debates that have changed the most are related to theoretical content and empirical data, while disputes related to methods remain largely unchanged. Synthesizing this material, I distinguish four different "approaches" to the study of multilevel selection based on the questions and methods used by researchers, and I use the results of the Nasonia experiment to discuss how each approach can lead to different interpretations of the same experimental data. I argue that this realization can help to explain why debates about group and multilevel selection have persisted for nearly sixty years. Finally, the conclusions of this dissertation apply beyond evolutionary biology by providing an illustration of how key concepts can change over time, and how failing to appreciate this fact can lead to ongoing controversy within a scientific field.
explained by natural selection acting on traits that persisted "for the good of the group" prompted a series of debates about group-level selection and the effectiveness with which natural selection could act at or across multiple levels of biological organization. For some this topic remains contentious, while others consider the debate settled, even while disagreeing about when and how resolution occurred, raising the question: "Why have these debates continued?"
Here I explore the biology, history, and philosophy of the possibility of natural selection operating at levels of biological organization other than the organism by focusing on debates about group-level selection that have occurred since the 1960s. In particular, I use experimental, historical, and synthetic methods to review how the debates have changed, and whether different uses of the same words and concepts can lead to different interpretations of the same experimental data.
I begin with the results of a group-selection experiment I conducted using the parasitoid wasp Nasonia, and discuss how the interpretation depends on how one conceives of and defines a "group." Then I review the history of the group selection controversy and argue that this history is best interpreted as multiple, interrelated debates rather than a single continuous debate. Furthermore, I show how the aspects of these debates that have changed the most are related to theoretical content and empirical data, while disputes related to methods remain largely unchanged. Synthesizing this material, I distinguish four different "approaches" to the study of multilevel selection based on the questions and methods used by researchers, and I use the results of the Nasonia experiment to discuss how each approach can lead to different interpretations of the same experimental data. I argue that this realization can help to explain why debates about group and multilevel selection have persisted for nearly sixty years. Finally, the conclusions of this dissertation apply beyond evolutionary biology by providing an illustration of how key concepts can change over time, and how failing to appreciate this fact can lead to ongoing controversy within a scientific field.
ContributorsDimond, Christopher C (Author) / Collins, James P. (Thesis advisor) / Gadau, Juergen (Committee member) / Laubichler, Manfred (Committee member) / Armendt, Brad (Committee member) / Lynch, John (Committee member) / Arizona State University (Publisher)
Created2014