Ballot Secrecy Concerns and Voter Mobilization: New Experimental Evidence About Message Source, Context, and the Duration of Mobilization Effects

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Suggested citation: 

Gerber, Alan S., Gregory A. Huber, Daniel R. Biggers, and David J. Hendry (2014). Replication Materials for, ‘Ballot Secrecy Concerns and Voter Mobilization: New Experimental Evidence About Message Source, Context, and the Duration of Mobilization Effects,’ ISPS Data Archive.


Daniel Biggers, Gregory Huber, Alan S. Gerber, David Hendry

Research design: 
Data type: 
Data source(s): 

Authors; Voter Participation Center (VPC); CT voter record

Data source information: 


Field date: 
April 1, 2012
Field Date: 
2012 - 2013
Location details: 
WI and CT
Unit of observation: 
Sample size: 
Experiment 1: 10,200 Experiment 2: 894,791
Experiment 1: VPC obtained a list of eligible Wisconsin registrants from an outside private vendor; the voter records used to generate the sample for this experiment came from a voter file produced by the Wisconsin Secretary of State in April of 2012. the organization selected the study population from this list of registrants. Records were first removed if they had an invalid mailing address or if they were included in another experiment run by the organization. From the remaining records, registrants were retained if they (a) were unmarried women or members of a minority group10 (i.e., non-Caucasians), (b) were listed as active registrants, (c) had registered in December of 2006 or later, and (d) had no record of having voted in any general primary, general election, or special election. We limited our analysis to the 10,200 individuals who had been registered before the November 2008 election but had not participated in that high-salience race.Experiment 2: See
Randomization procedure: 
Experiment 1: Eligible subjects were then randomly assigned to a control or treatment condition.Experiment 2: See
Experiment 1: Mailing sent under the group’s letterhead that sought to address salient concerns about ballot secrecy.Experiment 2: See
Treatment administration: 
Outcome measures: 
Voter turnout
Archive date: 
Owner contact: 


Terms of use: 

ISPS Data Arhive: Term of Use.

Area of study: 
Data file numbersort descending Description File format Size File url
D113F01 ReadMe file .txt 3072 Download file
D113F02 Data file - CT .dta 118784 Download file
D113F03 Data file - WI .dta 439296 Download file
D113F04 Data file - WI competition .dta 1135616 Download file
D113F05 Data file - CT .csv 296960 Download file
D113F06 Data file - WI .csv 961536 Download file
D113F07 Data file - WI competition .csv 2357248 Download file
D113F11 Program file 01 .do 6144 Download file
D113F12 Program file 02 .do 16384 Download file
D113F13 Program file 03 .do 4096 Download file
D113F14 Program file 04 .do 2048 Download file
D113F15 Program file 05 .do 5120 Download file
D113F16 Program file 06 .do 3072 Download file
D113F17 Program file 07 .R 5120 Download file
D113F18 Program file labels .do 12288 Download file
D113F20 Metadata (DDI 3.2) .xml 542687 Download file