When Context Matters: Assessing Geographical Heterogeneity of Get-Out-The-Vote Treatment Effects Using a Population Based Field Experiment

When Context Matters: Assessing Geographical Heterogeneity of Get-Out-The-Vote Treatment Effects Using a Population Based Field Experiment
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当背景很重要时:使用基于人群的现场实验评估投票处理效果的地理异质性

DOI:
10.1007/s11109-013-9226-4
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发表时间:
2013
期刊:
影响因子:
3.9
通讯作者:
Fieldhouse E
Fieldhouse E
中科院分区:
法学1区
文献类型:
--
作者:
Fieldhouse E

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治疗效果的异质性的存在可能会给研究人员在其研究中使用狭窄的实验池带来问题。特别是,经常有人质疑,某一特定实验的结果是否可以外推到研究的特定地点之外。在这篇文章中,我们使用了一个以人口为基础的实地实验,以测试在何种程度上的非个人动员技术(直邮和电话)的治疗效果是敏感的,他们进行的地方(地理)和选举的背景下,他们进行。我们发现,总的来说,在哪里进行实验并不重要:治疗效果在地理上是一致的。这对更普遍的投票实地研究的外部效度有重要影响,特别是在使用单一地点的情况下。然而,有一个重要的例外:在高投票率地区进行的高显着性选举的实验可能会显示出比在低投票率地区进行的实验更大的影响。
The presence of heterogeneity in treatment effects can create problems for researchers employing a narrow experimental pool in their research. In particular it is often questioned whether the results of a particular experiment can be extrapolated outside the specific location of the study. In this article, we use a population-based field experiment in order to test the extent to which treatment effects for impersonal mobilisation techniques (direct mail and telephone) are sensitive to where they are carried out (geography) and the context of the election in which they were conducted. We find that on the whole it does not much matter where an experiment is conducted: the treatment effects are to all intents and purposes geographically uniform. This has important implications for the external validity of get-out-the-vote field studies more generally, especially where single locations are used. However, there is one important exception to this: experiments carried out in high turnout locations at high salience elections may show larger effects than those carried out in low turnout areas.
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