Abstract
The multiplication of complex datasets in empirical social sciences calls for methods that can improve the design of complex datasets before the actual gathering of data. Yet mainstream scholars in related fields have rarely explored such methods. In this study, we introduce Interpretive Structural Modeling (ISM) as such a method. As a mixed method, ISM integrates Boolean algebra, matrix theory, and directed graph theory to impose a formal structure to qualitative understanding of a complex system. ISM’s final output is a directed graph that can be visually and easily interpreted. We show that ISM can structure indicators graphically into a multilayered and multi-blocked model, thus uncovering hidden interactions among indicators. By doing so, ISM can reveal hidden and undesired redundancies and incoherencies among indicators within a complex dataset. Most critically, ISM achieves these goals without relying on statistical analysis and hence before the actual gathering of any data. Deploying ISM when designing complex datasets thus facilitates more rigorous conceptualization and understanding of complex social phenomena, steers us away from badly designed complex datasets, and saves precious resource. We use ISM to probe several complex datasets to demonstrate its potentials.
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Notes
At the onset, we like to state explicitly that we are only interested in complex datasets here. For a simple dataset that captures a simple concept with one or two components, there is no need for performing an ISM exercise. For simplicity, we use “dataset(s)” to denote “complex dataset(s)”. By (empirical) social sciences, we mean anthropology, economics, social psychology, sociology, and political sciences.
In the case of Inglehart’s “materialism-postmaterialism value” dataset, “biases” as identified by Clarke et al (1999) are what we mean by “incoherency” here.
Search with ISM in social sciences with google scholar indicates that ISM has not been seriously introduced to social sciences. The only relevant citation we could find is a mentioning of ISM by Dunn (1988) in Policy Studies Review. The utilities of ISM that Dunn has in mind, however, were very conventional.
By multi-layered, we mean that factors can be sorted or arranged into several layers. By multi-blocked, we mean that factors can be sorted or arranged into several blocs. By multi-directional, we mean that a factor can be shown to have many interactions with other factors. See Fig. 5 below for a concrete illustration.
The two software packages will be freely available when the paper is published. Our software programs come with easy to understand and implement instructions. There are other computer programs that have been specifically designed to run ISM (e.g., concept-Star).
See Warfield’s homepage (http://warfield.gmu.edu/exhibits/show/warfield/innovator/ism) for more detailed introduction to ISM. The document “Annotated Mathematical Bibliography for ISM” is especially useful for tracing the technical development and finding the relevant mathematical proofs of ISM.We address the limitation of ISM in the context of our research objectives in the concluding section.
We emphasize this point because if not clearly stated, intentionally designed redundancy poses problem for scholars who use the data but are not the author of the data: data users might be unaware of the redundancy within the dataset and use the dataset as given.
We need only to consider direct interactions when constructing IRM because ISM has the built-in capacity of uncovering indirect interactions: the final reachability matrix (FRM) captures both direct and indirect connections among elements, even though IRM starts with direct connections alone..
Transitivity is roughly equivalent to interactivity. FRM can capture all possible transitivity among elements because through Boolean matrix multiplication, mathematical operations can reveal hidden and indirect transitivity between two elements that may not be connected directly but can be connected indirectly via other elements and pathways. See Sects. 4 and 5 for illustrations and discussion.
In other words, the following mathematical principles only apply to Boolean matrix and Identity Matrix. Note that the Identity Matrix itself is a Boolean matrix.
Of course, the exact value of k depends on the specific SSIM that is derived from the IRM (for illustrations, see Appendixes A and B).
In Appendix B, we subject the dataset constructed by Mainwarning and Pérez-Liñán (2013) to an ISM exercise.
The two experts are two authors of the paper. Both authors are well trained in methodologies and the relevant literature (i.e., democracy/democratization, political culture, and the broader comparative politics literature).
In a broad critique of the broader literature on “political culture” in which WVS has been a recent offshoot, Johnson’s (2003) did question the conceptual problems of the “political culture research”, including WVS.
Due to space constraint, we have moved the tables and figures and the detailed discussion on the “Achievement Motivation” to Appendix A. Here, we summarize our main findings very briefly.
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Acknowledgements
The first two authors contribute equally to the project. Special thanks go to Prof. Aníbal Pérez-Liñán (University of Notre Dame) for sending us the most updated version of their datasets on political regimes in Latin America and to Prof. Jianhong Yin (Hefei University of Technology, China) for proofreading the mathematics of Boolean matrix operation. The Java-based program for performing ISM operations is developed by Ke Wu. The Python-based program for performing ISM operations is developed by Chen-hui Liu. For critical comments on an earlier draft, we thank Jeff Gill, Dwayne Woods, and an anonymous reviewer of this journal.
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Wu, K., Tang, S. & Tang, M. Interpretative structural modeling to social sciences: designing better datasets for mixed method research. Qual Quant (2024). https://doi.org/10.1007/s11135-024-01838-5
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DOI: https://doi.org/10.1007/s11135-024-01838-5