This option is used to estimate the causal effect of variables on an intervention.
The Instrumental Variables option (IV) is described by Duncan Chapman on the Urban Institute’s website as “one of the more compelling quasi-experimental options of estimating impacts, largely because the assumptions needed to justify the IV option are often more plausible than those needed to justify other options, such as regression”
This option involves identifying instrumental variables; variables that impact on outcomes by affecting a key independent variable. The option can also be used to control for measurement errors.
Do you have an example of where this option has been used?
Do you have any advice for CHOOSING or USING this option?
- Instrumental Variables Options: This web page from The Urban Institute, provides a detailed explanation of how this option is used.
- What "Extras" do we get with Extracurriculars: This research paper uses Instrumental Variable Options to analyse whether "participation in out-of-school extracurricular activities improve academic achievement or behavior for elementary school children?
- High School Employment: Meaningful Connections for At-Risk Youth: This research example uses Instrumental Variable Options to "estimate the effects of high school employment on education and employment outcomes as long as 12 years after graduating from high school."
Chaplin, D. (2012). Instrumental variables options. Retrieved from http://www.urban.org/toolkit/data-methods/instrumental.cfm