How Large is Large? Preliminary and relative guidelines for interpreting partial correlations in economics
An essential part of empirical economics research is the identification of the size of an empirical effect. Partial correlations offer a convenient statistically based measure of the strength of an economic relationship. A key question arises in their interpretation: When is a partial correlation large? This paper draws upon the observed distribution of 22,000 partial correlations from a diverse group of economics fields. The median absolute partial correlation from these fields is 0.173, which under Cohen’s (1988) conventional guidelines for zero order correlations is a small to moderate effect. The paper develops new guidelines for key qualitative categories (small, medium and large). According to the new guidelines, partial correlations that are larger than ± 0.33 can be deemed to be large. This is considerably different to Cohen’s guideline of ±0.50 for zero order correlations. Researchers and meta-analysts should exercise caution when applying Cohen’s guidelines to describe the importance of partial correlations in economics.
|Date of creation:||04 Jul 2011|
|Date of revision:|
|Contact details of provider:|| Postal: |
Phone: 61 3 9244 3815
Web page: http://www.deakin.edu.au/buslaw/aef/index.php
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Lenth R. V., 2001. "Some Practical Guidelines for Effective Sample Size Determination," The American Statistician, American Statistical Association, vol. 55, pages 187-193, August.
- Jarko Fidrmuc & Iikka Korhonen, 2006.
"Meta-Analysis of the Business Cycle Correlation between the Euro Area and the CEECs,"
CESifo Working Paper Series
1693, CESifo Group Munich.
- Fidrmuc, Jarko & Korhonen, Iikka, 2006. "Meta-analysis of the business cycle correlation between the euro area and the CEECs," Journal of Comparative Economics, Elsevier, vol. 34(3), pages 518-537, September.
- T. D. Stanley, 2001. "Wheat from Chaff: Meta-analysis as Quantitative Literature Review," Journal of Economic Perspectives, American Economic Association, vol. 15(3), pages 131-150, Summer.
- Hristos Doucouliagos & T.D. Stanley, 2008. "Theory Competition and Selectivity: Are All Economic Facts Greatly Exaggerated?," Economics Series 2008_06, Deakin University, Faculty of Business and Law, School of Accounting, Economics and Finance.
- Hristos Doucouliagos & Martin Paldam, 2005. "Aid Effectiveness on Growth. A Meta Study," Economics Working Papers 2005-13, School of Economics and Management, University of Aarhus.
- Chris Doucouliagos, 1995.
"Worker participation and productivity in labor-managed and participatory capitalist firms: A meta-analysis,"
Industrial and Labor Relations Review,
ILR Review, Cornell University, ILR School, vol. 49(1), pages 58-77, October.
- Chris Doucouliagos, 1995. "Worker Participation and Productivity in Labor-Managed and Participatory Capitalist Firms: A Meta-Analysis," ILR Review, Cornell University, ILR School, vol. 49(1), pages 58-77, October.
- Hristos Doucouliagos & Janto Haman & T.D. Stanley, 2012.
"Pay for Performance and Corporate Governance Reform,"
Industrial Relations: A Journal of Economy and Society,
Wiley Blackwell, vol. 51(3), pages 670-703, 07.
- Hristos Doucouliagos & Janto Haman & T.D. Stanley, 2010. "Pay for Performance and Corporate Governance Reform," Economics Series 2010_04, Deakin University, Faculty of Business and Law, School of Accounting, Economics and Finance.
- Maria Abreu Henri L. F. de Groot & Raymond J. G. M. Florax, 2005. "A Meta-Analysis of β-Convergence: the Legendary 2%," Journal of Economic Surveys, Wiley Blackwell, vol. 19(3), pages 389-420, 07.
- T.D. Stanley, 2006.
"Meta-Regression Methods for Detecting and Estimating Empirical Effects in the Presence of Publication Selection,"
2006_20, Deakin University, Faculty of Business and Law, School of Accounting, Economics and Finance.
- T. D. Stanley, 2008. "Meta-Regression Methods for Detecting and Estimating Empirical Effects in the Presence of Publication Selection," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 70(1), pages 103-127, 02.
- Bellavance, Franois & Dionne, Georges & Lebeau, Martin, 2009.
"The value of a statistical life: A meta-analysis with a mixed effects regression model,"
Journal of Health Economics,
Elsevier, vol. 28(2), pages 444-464, March.
- François Bellavance & Georges Dionne & Martin Lebeau, 2006. "The Value of a Statistical Life: a Meta-Analysis with a Mixed Effects Regression Model," Cahiers de recherche 0646, CIRPEE.
- McCloskey, Donald N, 1985. "The Loss Function Has Been Mislaid: The Rhetoric of Significance Tests," American Economic Review, American Economic Association, vol. 75(2), pages 201-05, May.
- Laura de Dominicis & Raymond J. G. M. Florax & Henri L. F. de Groot, 2008. "A Meta-Analysis On The Relationship Between Income Inequality And Economic Growth," Scottish Journal of Political Economy, Scottish Economic Society, vol. 55(5), pages 654-682, November.
- Simeon Djankov & Peter Murrell, 2002.
"Enterprise Restructuring in Transition: A Quantitative Survey,"
Journal of Economic Literature,
American Economic Association, vol. 40(3), pages 739-792, September.
- Djankov, Simeon & Murrell, Peter, 2002. "Enterprise Restructuring in Transition: A Quantitative Survey," CEPR Discussion Papers 3319, C.E.P.R. Discussion Papers.
- Michael Weisbach, 2010. "Corporate Governance," NBER Books, National Bureau of Economic Research, Inc, number weis10-1, 07.
When requesting a correction, please mention this item's handle: RePEc:dkn:econwp:eco_2011_5. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Dr Xueli Tang)
If references are entirely missing, you can add them using this form.