Selection on observed and unobserved variables: assessing the effectiveness of Catholic schools
We develop estimation methods that use the amount of selection on the observables in a model as a guide to the amount of selection on the unobservables. We show that if the observed variables are a random subset of a large number of factors that influence the endogenous variable and the outcome of i...
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| Hauptverfasser: | , , |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Cambridge, Mass.
National Bureau of Economic Research
2000
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| Schriftenreihe: | NBER working paper series
7831 |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Zusammenfassung: | We develop estimation methods that use the amount of selection on the observables in a model as a guide to the amount of selection on the unobservables. We show that if the observed variables are a random subset of a large number of factors that influence the endogenous variable and the outcome of interest, then the relationship between the index of observables that determines the endogenous variable and the index that determines the outcome will be the same as the relationship between the indices of unobservables that determine the two variables. In some circumstances this fact may be used to identify the effect of the endogenous variable. We also propose an informal way to assess selectivity bias based on measuring the ratio of selection on unobservables to selection on observables that would be required if one is to attribute the entire effect of the endogenous variable to selection bias. We use our methods to estimate the effect of attending a Catholic high school on a variety of outcomes. Our main conclusion is that Catholic high schools substantially increase the probability of graduating from high school and, more tentatively, college attendance. We do not find much evidence for an effect on test scores. |
| Beschreibung: | 51, [12] S. graph. Darst. |
Internformat
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| 245 | 1 | 0 | |a Selection on observed and unobserved variables |b assessing the effectiveness of Catholic schools |c Joseph G. Altonji ; Todd E. Elder ; Christopher R. Taber |
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| 490 | 1 | |a NBER working paper series |v 7831 | |
| 520 | |a We develop estimation methods that use the amount of selection on the observables in a model as a guide to the amount of selection on the unobservables. We show that if the observed variables are a random subset of a large number of factors that influence the endogenous variable and the outcome of interest, then the relationship between the index of observables that determines the endogenous variable and the index that determines the outcome will be the same as the relationship between the indices of unobservables that determine the two variables. In some circumstances this fact may be used to identify the effect of the endogenous variable. We also propose an informal way to assess selectivity bias based on measuring the ratio of selection on unobservables to selection on observables that would be required if one is to attribute the entire effect of the endogenous variable to selection bias. We use our methods to estimate the effect of attending a Catholic high school on a variety of outcomes. Our main conclusion is that Catholic high schools substantially increase the probability of graduating from high school and, more tentatively, college attendance. We do not find much evidence for an effect on test scores. | ||
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| index_date | 2024-07-02T22:01:32Z |
| indexdate | 2024-07-09T21:21:22Z |
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| language | English |
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| series | NBER working paper series |
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| spelling | Altonji, Joseph G. 1953- Verfasser (DE-588)128689943 aut Selection on observed and unobserved variables assessing the effectiveness of Catholic schools Joseph G. Altonji ; Todd E. Elder ; Christopher R. Taber Cambridge, Mass. National Bureau of Economic Research 2000 51, [12] S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier NBER working paper series 7831 We develop estimation methods that use the amount of selection on the observables in a model as a guide to the amount of selection on the unobservables. We show that if the observed variables are a random subset of a large number of factors that influence the endogenous variable and the outcome of interest, then the relationship between the index of observables that determines the endogenous variable and the index that determines the outcome will be the same as the relationship between the indices of unobservables that determine the two variables. In some circumstances this fact may be used to identify the effect of the endogenous variable. We also propose an informal way to assess selectivity bias based on measuring the ratio of selection on unobservables to selection on observables that would be required if one is to attribute the entire effect of the endogenous variable to selection bias. We use our methods to estimate the effect of attending a Catholic high school on a variety of outcomes. Our main conclusion is that Catholic high schools substantially increase the probability of graduating from high school and, more tentatively, college attendance. We do not find much evidence for an effect on test scores. Catholic high schools United States Evaluation Statistical methods Experimental design USA Elder, Todd E. Verfasser aut Taber, Christopher 1966- Verfasser (DE-588)130594709 aut Erscheint auch als Online-Ausgabe NBER working paper series 7831 (DE-604)BV002801238 7831 http://papers.nber.org/papers/w7831.pdf kostenfrei Volltext |
| spellingShingle | Altonji, Joseph G. 1953- Elder, Todd E. Taber, Christopher 1966- Selection on observed and unobserved variables assessing the effectiveness of Catholic schools NBER working paper series Catholic high schools United States Evaluation Statistical methods Experimental design |
| title | Selection on observed and unobserved variables assessing the effectiveness of Catholic schools |
| title_auth | Selection on observed and unobserved variables assessing the effectiveness of Catholic schools |
| title_exact_search | Selection on observed and unobserved variables assessing the effectiveness of Catholic schools |
| title_exact_search_txtP | Selection on observed and unobserved variables assessing the effectiveness of Catholic schools |
| title_full | Selection on observed and unobserved variables assessing the effectiveness of Catholic schools Joseph G. Altonji ; Todd E. Elder ; Christopher R. Taber |
| title_fullStr | Selection on observed and unobserved variables assessing the effectiveness of Catholic schools Joseph G. Altonji ; Todd E. Elder ; Christopher R. Taber |
| title_full_unstemmed | Selection on observed and unobserved variables assessing the effectiveness of Catholic schools Joseph G. Altonji ; Todd E. Elder ; Christopher R. Taber |
| title_short | Selection on observed and unobserved variables |
| title_sort | selection on observed and unobserved variables assessing the effectiveness of catholic schools |
| title_sub | assessing the effectiveness of Catholic schools |
| topic | Catholic high schools United States Evaluation Statistical methods Experimental design |
| topic_facet | Catholic high schools United States Evaluation Statistical methods Experimental design USA |
| url | http://papers.nber.org/papers/w7831.pdf |
| volume_link | (DE-604)BV002801238 |
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