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Comment on Mesoudi and O’Brien’s “The Cultural Transmission of Great Basin Projectile-Point Technology I: An Experimental Simulation”

Published online by Cambridge University Press:  20 January 2017

Douglas M. Potter*
Affiliation:
Biostatistics Department, Graduate School of Public Health, University of Pittsburgh, and Biostatistics Facility, University of Pittsburgh Cancer Institute, Suite 325 Sterling Plaza, 201 North Craig Street, Pittsburgh, Pennsylvania 15213 (dmp71@pitt.edu)

Abstract

Mesoudi and O’Brien (2008) describe an experimental simulation of the cultural transmission of projectile-point technology. They base some of their conclusions on the results of tests of correlation. I explain why their use of correlation is improper, and hence that the validity of their conclusions is questionable at best. To support that assertion, I provide simulations to demonstrate that spurious correlations arise in the situations where the authors use correlation. I also describe analysis methods appropriate for their data.

Resumen

Resumen

Mesoudi y O’Brien (2008) describen una simulación experimental de la transmisión cultural de las tecnologías de puntas de proyectil. Ellos basan algunas de sus conclusiones en los resultados de las pruebas de correlación. Puedo explicar por qué el uso de la correlación es inadecuada, y por lo tanto que la validez de sus conclusiones es cuestionable en el mejor de los casos. Para sustentar esta afirmación, proporciono simulaciones para demostrar que las correlaciones espurias surgen en las situaciones en que los autores utilizan la correlación. También describo los métodos de anãlisis apropiados para sus datos.

Type
Comments
Copyright
Copyright © The Society for American Archaeology 2012

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References

References Cited

Diggle, Peter J., Liang, Kung-Lee, and Zeger, Scott L. 1996 Analysis of Longitudinal Data. Oxford, Oxford.Google Scholar
Dunn, Olive J., and Clark, Virginia 1969 Correlation Coefficients Measured on the Same Individuals. Journal of the American Statistical Association 63(325):366377.Google Scholar
Hollander, Myles, and Wolfe, Douglas A. 1999 Nonparametric Statistical Methods. John Wiley, New York.Google Scholar
Mesoudi, Alex, and Obrien, Michael J. 2008 The Cultural Transmission of Great Basin Projectile-Point Technology I: An Experimental Simulation. American Antiquity 73:328.Google Scholar