National Evaluation of Welfare-to-Work Strategies: 2-Year Full Impact Sample Files: Overview of Sample Sizes, by Site and Research Group

09/10/2001

Table 1
Overview of Sample Sizes, by Site and Research Group

Site and Program                Impact      Client     Child      Private     Baseline
                                Sample      Survey     Outcomes   Opinion     Test
                                            Sample     Study      Survey
                                                       Sample     Sample
Atlanta
 Random assignment period       01/07/92   03/12/92   03/12/92    03/12/92    03/12/92
                               -01/27/94  -01/27/94  -01/27/94   -01/27/94   -01/27/94
 Labor Force Attachment          1887         804        396        1646        1673
 Human Capital Development       1935        1113        520        1686        1721
 Control                         1946        1086        506        1701        1735
  Full sample                    5768        3003       1422        5033        5129

Grand Rapids
 Random assignment period       09/25/91    03/25/92   03/25/92   03/25/92    03/25/92
                               -01/31/94   -01/31/94  -01/31/94  -01/31/94   -01/12/94
 Labor Force Attachment          1557         574        225        1061        1062
 Human Capital Development       1542         574        205        1050        1050
 Control                         1455         584        216         985         981
  Full sample                    4554        1732        646        3096        3093

Riverside
 Random assignment period       06/18/91    09/03/91   09/03/91   02/18/92    06/18/91
                               -06/30/93   -05/27/93  -05/27/93  -06/30/93   -06/30/93
 Labor Force Attachment          3384         564        208        2090        2895
 Human Capital Development       1596         621        256         970        1319
 Control                         3342        1114        486        2042        2857
  Full sample                    8322        2299        950        5102        7071

Columbus
 Random assignment period       09/21/92    01/04/93
                               -07/29/94   -12/29/93
Integrated                       2513         371
 Traditional                     2570         366
 Control                         2159         357
  Full sample                    7242        1094

Detroit
 Random assignment period       05/12/92    01/24/93
                               -06/30/94   -12/20/93
 Program                         2226         210
 Control                         2233         216
  Full sample                    4459         426
                                                                                              (continued)
Oklahoma City
 Random assignment period       09/09/91    06/01/92
                               -05/28/93   -05/24/93
 Program                         4309         259
 Control                         4368         252
  Full sample                    8677         511

Portland
 Random assignment period       02/16/93    03/03/93              02/16/93     02/16/93
                               -12/31/94   -02/28/94             -09/14/94    -12/28/94
 Program                         3529         297                   3325         3362
 Control                         2018         313                   1905         1922
  Full sample                    5547         610                   5230         5284

Total Sample Size               44,569      9,675      3,018       18,461       20,577