The published version of this article (Reny and Newman Reference Reny and Newman2021) referred to the data used in the analyses as data from The Democracy Fund + UCLA Nationscape Project (NS) (see Tausanovitch et al. Reference Tausanovitch, Vavreck, Hayes, Holliday, Reny and Rudkin2021 for a description of this project). Data for the analyses presented in the published letter were collected as part of The Democracy Fund + UCLA Nationscape Project on which one of the authors served as a project coordinator. The original data used included some interviews that were eventually excluded from the public release of Nationscape data and therefore did not exactly match any of the public releases of Nationscape data. In this corrigendum we have updated the analysis with the publicly released dataset, which was released on December 14, 2021 and can be found here: https://www.voterstudygroup.org/data/nationscape. None of the results of our analysis presented in the original article substantively changed with the new dataset.
We have updated our Harvard Dataverse and replication file accordingly. In addition to the minor changes to the results in the manuscript presented below, the minor changes to the NS data also resulted in various small differences to the results presented in the published accompanying online appendix. As is the case with our main results, no meaningful changes occurred with the results presented in the appendix. An updated appendix is available on the APSR Dataverse.
Below is a list of minor changes and new results:
Changes
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1. On page 1501 the in-text citation “(Tausanovitch and Vavreck 2020)” is incorrect. It should read “(Tausanovitch and Vavreck Reference Tausanovitch and Vavreck2021)”
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2. On page 1501 the estimated number of respondents in each wave of the survey is incorrect. It should read “(N = 6,100 per week)”
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3. On page 1501 the in-text citation “(Tausanovitch et al 2019)” is incorrect. It should read “(Tausanovitch et al. Reference Tausanovitch, Vavreck, Hayes, Holliday, Reny and Rudkin2021)”
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4. On page 1501 the average number of respondents per day is incorrect. It should read “averaging about N=870 respondents per day”
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5. On page 1501, the total sample size is incorrect. It should read “a total sample of N=364,727”
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6. On page 1501 the summary of the main treatment effects is incorrect. It should read “within the full sample, the event increased police unfavorability by 0.29 points (p < 0.01), or 28% of a standard deviation, and increased perceptions of discrimination against Black Americans by 0.20 points (p < 0.01), or 17% of a standard deviation”
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7. On page 1503, Figure 2 is incorrect. It should be:
Figure 2. Police Unfavorability and Perceived Discrimination against Black Americans
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8. On page 1504, Figure 3 is incorrect. It should be:
Figure 3. Coefficient and Predicted Value Plots for Prejudice and Partisanship
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9. On page 1505, Figure 4 is incorrect. It should be:
Figure 4. Proximity to Protest and Exposure to News and Social Media
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10. On page 1507 updated references should read
“Tausanovitch, Chris and Lynn Vavreck. 2021. The Democracy Fund + UCLA Nationscape Project, July 2019 - September 2020, obtained from principal investigators September 13, 2021.”
“Tausanovitch, Chris, Lynn Vavreck, Alex Rossell Hayes, Derek Holliday, Tyler Reny, and Aaron Rudkin. 2021. “Democracy Fund + UCLA Nationscape Project Methodology and Representativeness Assessment,” forthcoming at https://www.voterstudygroup.org.”
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