Emails from Official Sources Can Increase Turnout

ISPS Data Archive: Terms of Use

By using, contributing, and/or downloading files associated with scholarly studies available on the ISPS Data Archive, you agree to these terms and conditions. Please read the ISPS Data Archive Terms of Use.

Suggested citation: 

Malhorta, Neil, Melissa R. Michelson and Ali Adam Valenzuela (2012), Replication Materials for ,’Emails from Official Sources Can Increase Turnout,’ ISPS Data Archive.


Ali Valenzuela, Neil Malhotra, Melissa Michelson

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


Data source information: 


Field date: 
November 1, 2009
Field Date: 
2009-11 - 2010-11
Location details: 
California - San Mateo County
Unit of observation: 
Sample size: 
Nov 2009: 48,504 June 2010: 47,463 Nov 2010: 69,556
List of registered voters who provided a unique email address at the time of registration. In November 2009, individuals in a particular school district were excluded from the experiment. In November 2009 and June 2010 some individuals were removed from the list in order to allow for a concurrent experiment using another GOTV tactic.
Randomization procedure: 
Random assignment at the household level
GOTV message from (1) local registrar in San Mateo County, California, (2) Fictional organization (People for the Advancement of Voter Engagement, PAVE), (3) control group (no email message)
Treatment administration: 
Outcome measures: 
Voting turnout
Archive date: 
Owner contact: 


Terms of use: 

ISPS Data Archive: Terms of Use.

Area of study: 
Data file numbersort descending Description File format Size File url
D084F01 ReadMe file .pdf 33792 Download file
D084F02 Data file - June10_treat .dta 36690944 Download file
D084F03 Data file - June10_post .dta 48539648 Download file
D084F04 Data file - Nove09_treat .dta 2718720 Download file
D084F05 Data file - Nove09_post .dta 2719744 Download file
D084F06 Data file - Nove10_treat .dta 7932928 Download file
D084F07 Data file - Nove10_post .dta 24320000 Download file
D084F08 Data file - June10_treat .csv 23866368 Download file
D084F09 Data file - June10_post .csv 34710 Download file
D084F10 Data file - Nove09_treat .csv 2168832 Download file
D084F11 Data file - Nove09_post .csv 3328000 Download file
D084F12 Data file - Nove10_treat .csv 3693568 Download file
D084F13 Data file - Nove10_post .csv 25481216 Download file
D084F14 Program file .do 48128 Download file
D084F15 Output file - pave_control .xls 323584 Download file
D084F16 Output file - registrar_control .xls 324608 Download file
D084F17 Output file - registrar_pave .xls 323584 Download file
D084F18 Output file - pave_control .pdf 56320 Download file
D084F19 Output file - registrar_control .pdf 56320 Download file
D084F20 Output file - registrar_pave .pdf 56320 Download file
D084F28 Metadata (DDI 3.2) .xml 316455 Download file