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ERIC Number: EJ1170297
Record Type: Journal
Publication Date: 2018
Pages: 30
Abstractor: As Provided
ISSN: ISSN-1934-5747
Bounding, an Accessible Method for Estimating Principal Causal Effects, Examined and Explained
Miratrix, Luke; Furey, Jane; Feller, Avi; Grindal, Todd; Page, Lindsay C.
Journal of Research on Educational Effectiveness, v11 n1 p133-162 2018
Estimating treatment effects for subgroups defined by posttreatment behavior (i.e., estimating causal effects in a principal stratification framework) can be technically challenging and heavily reliant on strong assumptions. We investigate an alternative path: using bounds to identify ranges of possible effects that are consistent with the data. This simple approach relies on fewer assumptions and yet can result in policy-relevant findings. As we show, even moderately predictive covariates can be used to substantially tighten bounds in a straightforward manner. Via simulation, we demonstrate which types of covariates are maximally beneficial. We conclude with an analysis of a multisite experimental study of Early College High Schools. When examining the program's impact on students completing the ninth grade "on-track" for college, we find little impact for ECHS students who would otherwise attend a high-quality high school, but substantial effects for those who would not. This suggests a potential benefit in expanding these programs in areas primarily served by lower quality schools.
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: Institute of Education Sciences (ED)
Authoring Institution: N/A
Identifiers - Location: North Carolina
IES Funded: Yes
Grant or Contract Numbers: R305R060022; R305A110064