R Dataset / Package DAAG / nsw74psid3

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GNU General Public License v2.0
GNU General Public License v2.0
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Documentation

Labour Training Evaluation Data

Description

These data are pertinent to an investigation of the way that earnings changed, between 1974-1975 and 1978, in the absence of training. The data frame combines data for the experimental treatment group (NSW, 185 observations), using as control data results from the PSID (Panel Study of Income Dynamics) study (128 observations). The latter were chosen to mimic the characteristics of the NSW training and control groups. These are a subset of the nsw74psid1 data.

Usage

nsw74psid3

Format

This data frame contains the following columns:

trt

a numeric vector identifying the study in which the subjects were enrolled (0 = PSID, 1 = NSW)

age

age (in years)

educ

years of education

black

(0 = not black, 1 = black)

hisp

(0 = not hispanic, 1 = hispanic)

marr

(0 = not married, 1 = married)

nodeg

(0 = completed high school, 1 = dropout)

re74

real earnings in 1974

re75

real earnings in 1975

re78

real earnings in 1978

References

Dehejia, R.H. and Wahba, S. 1999. Causal effects in non-experimental studies: re-evaluating the evaluation of training programs. Journal of the American Statistical Association 94: 1053-1062.

Lalonde, R. 1986. Evaluating the economic evaluations of training programs. American Economic Review 76: 604-620.

Examples

print("Contingency Tables - Example 4.4")
table(nsw74psid3$trt, nsw74psid3$nodeg)
chisq.test(table(nsw74psid3$trt,nsw74psid3$nodeg))

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Dataset imported from https://www.r-project.org.

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