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