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Title: Instrument Selection: The Case of Teenage Childbearing and Women's Educational Attainment
Resulting in 1 citation.
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Klepinger, Daniel H. Lundberg, Shelly Plotnick, Robert D. |
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Instrument Selection: The Case of Teenage Childbearing and Women's Educational Attainment Discussion Paper No. 1077-95, Institute for Research on Poverty, University of Wisconsin - Madison, November 1995. Also: http://www.irp.wisc.edu/publications/dps/pdfs/dp107795.pdf Cohort(s): NLSY79 Publisher: Institute for Research on Poverty (IRP), University of Wisconsin - Madison Keyword(s): Adolescent Fertility; Childbearing, Adolescent; Educational Attainment; Family Background and Culture; Methods/Methodology; Variables, Instrumental Permission to reprint the abstract has not been received from the publisher. Recent research has identified situations in which instrumental variables (IV) estimators are severely biased and has suggested diagnostic tests to identify such situations. We suggest a number of alternative techniques for choosing a set of instruments that satisfy these tests from a universe of a priori plausible candidates, and we apply them to a study of the effects of adolescent childbearing on the educational attainment of young women. We find that substantive results are sensitive to instrument choice, and make two recommendations to the practical researcher: First, it is prudent to begin with a large set of potential instruments, when possible, and pare it down through formal testing rather than to rely on a minimal instrument set justified on a priori grounds. Second, the application of more restrictive tests of instrument validity and relevance can yield results very different from those based on less restrictive tests that produce a more inclusive set of instruments, and is the preferred, conservative approach when improper instrument choice can lead to biased estimates. |
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Bibliography Citation
Klepinger, Daniel H., Shelly Lundberg and Robert D. Plotnick. "Instrument Selection: The Case of Teenage Childbearing and Women's Educational Attainment." Discussion Paper No. 1077-95, Institute for Research on Poverty, University of Wisconsin - Madison, November 1995. |