Experiments

Small effects of political advertising

Coppock, Hill & Vavreck · Science Advances 2020

59 real-time randomized experiments on 49 presidential ads with 34,000 participants: persuasion effects by context, message, sender and receiver.

persuasionrandomized2016

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LicenseOpen replication data

Original source

What it can tell you

A second, independent estimate of typical ad effects

What it can't

Short-form or volunteer video

vote_choice_sates · 34 exps · 34.0K

date	term	estimate	std.error	statistic	p.value	conf.low	conf.high	df	outcome	ad_id	ad_title
16972	ad_id_fac42	0.0372	0.0246	1.5094	0.1313	-0.0111	0.0855	1983	general_vote_HC	42	Moments
16986	ad_id_fac45	0.0498	0.0317	-1.5709	0.1164	0.112	-0.0124	1983	general_vote_HC	45	Stop Clinton
17000	ad_id_fac48	-0.0048	0.0297	0.1603	0.8727	0.0534	-0.0629	1981	general_vote_HC	48	Same Old
17014	ad_id_fac51	-0.0348	0.0281	1.2392	0.2154	0.0203	-0.0899	1991	general_vote_HC	51	Outsource
17035	ad_id_fac56	-0.0595	0.0446	-1.3334	0.1827	-0.1469	0.028	992	general_vote_HC	56	Depend
17035	ad_id_fac57	0.0549	0.0454	-1.2087	0.2271	0.144	-0.0342	992	general_vote_HC	57	2 Americas: Immigration
17042	ad_id_fac58	-0.0037	0.0429	0.0864	0.9312	0.0804	-0.0878	991	general_vote_HC	58	2 Americas: Economy
17056	ad_id_fac61	-0.0338	0.0416	0.8127	0.4166	0.0479	-0.1155	989	general_vote_HC	61	Deplorables

Schema · 41 columns

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coppock2020/exps.rds7.7 MB coppock2020/exps_with_incompletes.rds1.4 MB coppock2020/favorability_cates.rds199 KB coppock2020/vote_choice_cates.rds110 KB coppock2020/favorability_sates.rds25 KB coppock2020/vote_choice_sates.rds15 KB coppock2020/estimate_favorability_cates.R5 KB coppock2020/estimate_vote_choice_cates.R4 KB coppock2020/figure_S1.R4 KB coppock2020/estimate_favorability_sates.R3 KB coppock2020/README.txt3 KB coppock2020/table_1.R3 KB coppock2020/estimate_vote_choice_sates.R3 KB coppock2020/figure_1.R3 KB coppock2020/helpers.R2 KB

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