Causation vs. Correlation and the Effects of Bias in Research
This paper examines key methodological concepts in research design through the lens of a 10-nation entrepreneurship study. It identifies independent and dependent variables, discusses intervening, extraneous, and moderating variables, and evaluates whether causal studies can be conducted without fully controlling all variable types. The paper also explores the impact of using national experts as key informants, noting how this practice introduces selection and perception bias into findings. Additionally, it addresses whether causal conclusions can be drawn from descriptive, ordinal, or interval data, weighing the roles of qualitative and quantitative methods in establishing causation versus correlation.
- Independent and Dependent Variables in the Entrepreneurship Study: Identifies key variables in the entrepreneurship study
- Intervening, Extraneous, and Moderating Variables: Lists and explains variables the 10-nation design controlled
- Conducting Causal Studies Without Full Variable Control: Whether causal studies can proceed without controlling all variables
- The Impact of Expert Bias on Study Results: How expert key informants introduce bias into findings
- Causal Studies Using Descriptive and Ordinal Data: Debate over causation when data is descriptive or ordinal
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What makes this paper effective
- Each question-answer section is clearly scoped, making the argument easy to follow across multiple methodological concepts.
- The paper draws on a consistent real-world anchor — a 10-nation entrepreneurship study — to ground abstract methodological distinctions in a concrete example.
- The discussion of bias is candid about its unavoidable nature, and the paper correctly identifies both selection bias and perception bias as distinct threats to validity.
Key academic technique demonstrated
The paper demonstrates the technique of applied methodological critique: rather than discussing research design in the abstract, it applies concepts such as variable classification and bias directly to a specific study design. This approach shows how theoretical distinctions (e.g., intervening vs. moderating variables) have practical consequences for how studies are structured and interpreted.
Structure breakdown
The paper is organized as a numbered Q&A, with each response functioning as a mini-analytical paragraph. Sections move logically from variable identification, to variable control, to expert reliability, and finally to the broader causation-versus-correlation debate. The references section includes five peer-reviewed sources cited in APA format, lending academic credibility to the methodological claims made throughout.
Independent and Dependent Variables in the Entrepreneurship Study
In this study, the dependent variable is entrepreneurship activity. The independent variables are the activities designed to stimulate entrepreneurship: promotion, facilitation, long-term commitment to secondary education, developing a society's capacity to accommodate higher levels of income disparity, and creating a culture that validates and promotes entrepreneurship throughout society.
Intervening, Extraneous, and Moderating Variables
The 10-nation study design attempted to account for several intervening, extraneous, and moderating variables. These included innovation, culture, the economy (GDP), geography and politics (geopolitics), proximity to needed supply chains, available resources, and government subsidies. By spanning multiple nations, the study sought to minimize the influence of any single country's unique circumstances on the overall findings.
Conducting Causal Studies Without Full Variable Control
Extraneous variables should be controlled when possible, but it is not always feasible to control for all of them, given their very nature as extraneous factors. Intervening variables are hypothetical by definition and cannot be directly observed in a study, which is why their influence cannot be precisely determined or controlled. Moderating variables can be controlled to some extent, as they are identifiable and may affect the relationship between the independent and the dependent variable (Bauman, Sallis, Dzewaltowski & Owen, 2002; MacKinnon, 2011).
References
Bauman, A. E., Sallis, J. F., Dzewaltowski, D. A., & Owen, N. (2002). Toward a better understanding of the influences on physical activity: the role of determinants, correlates, causal variables, mediators, moderators, and confounders. American Journal of Preventive Medicine, 23(2), 5–14.
Commons, M. L., Miller, P. M., & Gutheil, T. G. (2004). Expert witness perceptions of bias in experts. Journal of the American Academy of Psychiatry and the Law Online, 32(1), 70–75.
Curtis, E. A., Comiskey, C., & Dempsey, O. (2016). Importance and use of correlational research. Nurse Researcher, 23(6).
MacKinnon, D. P. (2011). Integrating mediators and moderators in research design. Research on Social Work Practice, 21(6), 675–681.
Pal, A., Harper, F. M., & Konstan, J. A. (2012). Exploring question selection bias to identify experts and potential experts in community question answering. ACM Transactions on Information Systems (TOIS), 30(2), 1–28.
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