ISPS ID:
D046
Suggested citation:
Gerber, Alan S. and Donald P. Green (2005), Replication Materials for: ‘Correction to Gerber and Green (2000), Replication of Disputed Findings, and Reply to Imai (2005),’ http://hdl.handle.net/10079/1c5b085. ISPS Data Archive.
Keyword(s):
Research design:
Data type:
Administrative
Data source(s):
Authors
Data source information:
isps(at)yale(dot)edu
Field date:
November 1, 1998
Field Date:
1998-11 - 2002-11
Location:
Location details:
1998 study: United States-CT; 2002 replication study: United States-MI, IA
Unit of observation:
1998 and 2002 studies: Individuals, within households
Sample size:
1998 study: 29,380; 2002 replication study: 1,905,320 (Individuals, within households)
Inclusion/exclusion:
1998 study: In September 1998 we obtained a complete list of all registered voters, from which we created a dataset of all households with one or two registered voters. To eliminate students from the sample, all names with post office box addresses were excluded, as was one voting ward that encompasses a university and student housing. We were left with 29,380 individuals (22,077 households) whose participation in the 1998 could be determined from public records. 2002 replication study: At the time of this writing, voter turnout results for the November 2002 elections remain unavailable in two small Michigan counties. Eliminating those observations reduces the treatment group to 59,972 and the control group to 1,845,348.
Randomization procedure:
1998 study: Random assignment was done at the household level; the sample was divided into control and experimental groups. 2002 replication study: The congressional districts of each state were divided into “competitive” and “uncompetitive” strata. Within each stratum, households containing one or two registered voters were randomly assigned to treatment and control groups. Only one type of treatment was used: a get-out-the-vote phone call. Just one representative from each household was assigned to treatment or control; the other voter was ignored for purposes of calling and statistical analysis.
Treatment:
1998 study: Personal canvassing, phone call, and direct mail get-out-the-vote messages. 2002 replication study: a get-out-the-vote phone call.
Treatment administration:
1998 study: Personal canvassing, phone call, and direct mail. 2002 replication study: phone.
Outcome measures:
1998 and 2002 studies: Voter turnout
Archive date:
2011
Owner:
Authors
Owner contact:
isps(at)yale(dot)edu
Terms of use:
ISPS Data Archive: Terms of Use
Discipline:
Area of study: