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Reply to “Time is Not A Theoretical Variable”

Published online by Cambridge University Press:  04 January 2017

David B. Carter*
Affiliation:
Department of Political Science, Pond Laboratory 211, The Pennsylvania State University, University Park, PA 16802
Curtis S. Signorino
Affiliation:
303 Harkness Hall, Department of Political Science, University of Rochester, Rochester, NY 14627. e-mail: curt.signorino@rochester.edu
*
e-mail: dbc10@psu.edu (corresponding author)
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We thank Neal Beck for his comments. In general, there is little difference in our theoretical and practical positions. We all agree that in some applications, time dummies can be problematic; controlling for temporal dependence is important for less-biased estimation of the coefficients on our substantive regressors; a smoothed function of time (whether via a cubic polynomial or spline) is a useful way to model temporal dependence in grouped binary data; and viewing the graph of the hazard can be informative.

Type
Research Article
Copyright
Copyright © The Author 2010. Published by Oxford University Press on behalf of the Society for Political Methodology