A Formal Theory of Survey Experiment Generalizability: Attention and Salience

Fuente: arXiv
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Main Authors: Fu, Jiawei, Li, Xiaojun
Format: Preprint
Published: 2024
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author Fu, Jiawei
Li, Xiaojun
author_facet Fu, Jiawei
Li, Xiaojun
contents Survey experiments are widely used to identify causal effects in political science and the social sciences. Yet researchers are typically interested in more than the internal validity of an experimentally induced contrast. They also want to know whether the estimated effect corresponds to the effect in the real world. We develop a formal theory of survey experiment generalizability grounded in behavioral microfoundations. The theory highlights two mechanisms. First, the survey environment shapes attention: it determines which considerations enter the respondent's active consideration set. Second, it shapes salience: conditional on consideration, it influences the relative weight assigned to those considerations. This framework yields two main results. Consideration-set compression generates amplification: survey-experimental effects can be larger in magnitude than their real-world counterparts, even for the same individuals, treatment content, and outcome. Context-dependent salience generates sign instability: the direction of the survey effect need not coincide with the direction of the corresponding real-world effect. The theory clarifies what survey experiments identify, when those effects are likely to generalize, and how survey designs can be modified to improve decision-environment transportability.
format Preprint
id arxiv_https___arxiv_org_abs_2405_06779
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A Formal Theory of Survey Experiment Generalizability: Attention and Salience
Fu, Jiawei
Li, Xiaojun
Econometrics
Applications
Survey experiments are widely used to identify causal effects in political science and the social sciences. Yet researchers are typically interested in more than the internal validity of an experimentally induced contrast. They also want to know whether the estimated effect corresponds to the effect in the real world. We develop a formal theory of survey experiment generalizability grounded in behavioral microfoundations. The theory highlights two mechanisms. First, the survey environment shapes attention: it determines which considerations enter the respondent's active consideration set. Second, it shapes salience: conditional on consideration, it influences the relative weight assigned to those considerations. This framework yields two main results. Consideration-set compression generates amplification: survey-experimental effects can be larger in magnitude than their real-world counterparts, even for the same individuals, treatment content, and outcome. Context-dependent salience generates sign instability: the direction of the survey effect need not coincide with the direction of the corresponding real-world effect. The theory clarifies what survey experiments identify, when those effects are likely to generalize, and how survey designs can be modified to improve decision-environment transportability.
title A Formal Theory of Survey Experiment Generalizability: Attention and Salience
topic Econometrics
Applications
url https://arxiv.org/abs/2405.06779