Do Administrative and Survey Data Tell the Same Impact Story?
利用HPOG 1.0影响研究数据，比较调查数据与行政数据在评估职业培训对就业和收入影响时的差异，发现收入影响因数据来源不同而结论相反。
<h3>Abstract</h3> Job training evaluations face a choice: whether to use survey data, administrative data, or both to estimate impacts. Using data from the Health Profession Opportunity Grants (HPOG 1.0) Impact Study, we investigate whether employment and earnings levels and impacts of gaining access to occupational training differ by source: survey data, National Directory of New Hires data, and state Unemployment Insurance data. Impacts of HPOG 1.0 on employment do not differ, but earnings impacts differ between the data sources. Administrative data analysis finds positive earnings impacts, whereas survey data analysis detects none. These findings differ from related research, which tends to report that earnings impacts estimated from survey data are larger than those estimated from administrative data.