GerberGreenImai {Matching}R Documentation

Gerber and Green Dataset used by Imai

Description

This is the dataset used by Imai (2005) to replicate and evaluate the field experiment done by Gerber and Green (2000). The accompanying demo replicates Imai's propensity score model which is then used to estimate the causal effect of get-out-the-vote telephone calls on turnout.

Usage

data(GerberGreenImai)

Format

A data frame with 10829 observations on the following 26 variables.

PERSONS
Number persons in household
WARD
Ward of residence
QUESTION
Asked to commit to voting
MAILGRP
Sent mail
PHONEGRP
Phone batch #1
PERSNGRP
Personal contact attempted
APPEAL
Content of message
CONTACT
Personal contact occurred
MAILINGS
Number of mailings sent
AGE
Age of respondent
MAJORPTY
Democratic or Republican
VOTE96.0
Abstained in 1996
VOTE96.1
Voted in 1996
MAILCALL
Phone batch #2
VOTED98
Voted in 1998
PHNSCRPT
Script read to phone respondents
DIS.MC
Contacted by phone in batch #2
DIS.PHN
Contacted by phone in batch #1
PHN.C
Contacted by phone
PHNTRT1
Phone contact attempted (no blood or blood/civic)
PHNTRT2
Phone contact attempted (no blood)
PHN.C1
Contact occurred in phntrt1
PHN.C2
Contact occurred in phntrt2
NEW
New voter
phone
Contacted by phone
AGE2
Age squared

Details

The demo provided, entitled GerberGreenImai, uses Imai's propensity score model to estimate the causal effect of get-out-the-vote telephone calls on turnout. The propensity score model fails to balance age.

References

Gerber, Alan S. and Donald P. Green. 2000. ``The Effects of Canvassing, Telephone Calls, and Direct Mail on Voter Turnout: A Field Experiment.'' American Political Science Review 94: 653-663.

Imai, Kosuke. 2005. ``Do Get-Out-The-Vote Calls Reduce Turnout? The Importance of Statistical Methods for Field Experiments.'' American Political Science Review 99: 283-300.

See Also

Also see Match and MatchBalance, GenMatch, balanceMV, balanceUV, ks.boot lalonde


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