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Robert M. O'Brien
Researcher at University of Oregon
Publications - 93
Citations - 10123
Robert M. O'Brien is an academic researcher from University of Oregon. The author has contributed to research in topics: Cohort & Poison control. The author has an hindex of 30, co-authored 91 publications receiving 8807 citations. Previous affiliations of Robert M. O'Brien include California State University & Florida State University College of Arts and Sciences.
Papers
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A caution regarding rules of thumb for variance inflation factors.
TL;DR: In this article, the authors examined the effect of the variance inflation factor (VIF) on the results of regression analyses, and found that threshold values of the VIF need to be evaluated in the context of several other factors that influence the variance of regression coefficients.
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The Determinants of Deadly Force: A Structural Analysis of Police Violence
David Jacobs,Robert M. O'Brien +1 more
TL;DR: For instance, this article found that killings committed by the police should be greatest in stratified jurisdictions with more minorities, and that the state's use of internal violence was greatest in minority communities.
Book
Crime and Victimization Data
TL;DR: In this paper, UCR, NCS, and SR Data Convergence and Divergence Conclusions Social Science and Social Policy Implications Social science and social policy Implications and Social Science, Social Policy, and Social Information.
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Estimating the Reliability of Aggregate-Level Variables Based on Individual-Level Characteristics
TL;DR: In this paper, the internal consistency reliability of individual-level characteristics is assessed for several commonly used research designs, based on generalizability theory and requiring only the data that would normally be used to answer the substantive questions of a study.
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The Use of Pearson's with Ordinal Data
TL;DR: In this article, the authors examined the effect of the number of rank categories (C) for rank-order variables on the product moment correlation (r) between stretched scales and an equal distance scoring system, and found that the average correlation between the EDS and the stretched scale is quite high for both the uniform and normal distributions, and that I increases with C only when C is greater than four or five.