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Report on the 2018 Asian Political Methodology Meeting

By Jong Hee Park

On January 11 and 12, 2018, the fifth Asian Political Methodology Meeting was held at Seoul National University, Republic of Korea. The meeting was co-sponsored by the Department of Political Science and International Relations at Seoul National University and Program for Quantitative and Analytical Political Science of Princeton University.

This year’s program, available at https://asiapolmeth.princeton.edu/online-program, had eight sessions including two keynote speeches and two...

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Political Science Research and Methods Adopts Code Ocean Integrated Reproducibility Software

By Justin Esarey

Yesterday, I was sent a press release from Cambridge University Press announcing that Political Science Research and Methods would begin integrating the Code Ocean reproducibility software as a part of its replication requirement. According to the press release,

Political Science Research & Methods (PSRM) is the first Press journal adopting Code Ocean, an extension of the journal’s existing policy that requires authors to deposit data necessary to reproduce the results in their articles. A PSRM article with the...

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The Alternative Specification of Interaction Models With a Discrete Modifying Variable

By Benjamin Ferland [1]

Since Brambor, Clark and Golder’s (2006) article in Political Analysis (hereafter BCG), our understanding of interaction models has improved significantly and most empirical scholars have now integrated the tools to execute and interpret interaction models properly. In particular, one of the main recommendations of BCG was to include all constitutive terms of the interaction in the model specification. However, BCG acknowledge (in the text surrounding equation 7 of their paper) that there is a mathematically equivalent model...

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Questions and Answers: Reproducibility and a Stricter Threshold for Statistical Significance

By Justin Esarey

[Update 12/2/2018 at 10:45 AM ET: A corrigendum to answers from Justin Esarey has been published.]

“Redefine statistical significance,” a paper recently published in Nature Human Behavior (Benjamin et al., 2017) generated a substantial amount of discussion in methodological circles....

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Minnesota Political Methodology Colloquium Graduate Student Conference 2018

By Carly Potz-Nielsen and Robert Ralston

We are very excited to announce a new Minnesota Political Methodology Colloquium (MPMC) initiative: the Minnesota Political Methodology Graduate Student Conference.  The conference is scheduled for May 4 & May 5, 2018.

The Minnesota Political Methodology Graduate Student Conference is designed to provide doctoral students with feedback on...

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Pitfalls when Estimating Treatment Effects Using Clustered Data

By James G. MacKinnon, Department of Economics, Queen’s University[1], and Matthew D. Webb, Department of Economics, Carleton University

Extended Abstract

There is a large and rapidly growing literature on inference with clustered data, that is, data where the disturbances (error terms) are correlated within clusters. This type of correlation is commonly observed whenever multiple observations are associated with the same political jurisdictions. Observations might also be clustered by time periods, industries, or institutions...

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Lowering the threshold of statistical significance to p < 0.005 to encourage enriched theories of politics

By Justin Esarey

[Update 12/2/2018 at 10:45 AM ET: A corrigendum to this piece has been published.]

Introduction

A large and interdisciplinary group of researchers recently proposed redefining the conventional threshold of statistical significance from p < 0.05 to...

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