Means (and Standard Deviations) of Individual and Family Characteristics by Program Type
| Michigan | National | |||||
|---|---|---|---|---|---|---|
| All | Full Day | Half Day | p-value | FACES | ECLS-B | |
| Obese: beginning of the year | 0.173 (0.379) | 0.172 (0.378) | 0.174 (0.379) | 0.943 [0.799] | 0.157 | 0.191 (0.394) |
| Obese: end of the year | 0.151 (0.358) | 0.120 (0.326) | 0.160 (0.366) | 0.041 [0.058] | — | — |
| Overweight: beginning of the year | 0.337 (0.473) | 0.344 (0.476) | 0.334 (0.472) | 0.761 [0.752] | 0.324 | 0.378 (0.485) |
| Overweight: end of the year | 0.320 (0.467) | 0.300 (0.459) | 0.326 (0.469) | 0.371 [0.298] | — | — |
| Underweight: beginning of the year | 0.041 (0.199) | 0.033 (0.179) | 0.044 (0.205) | 0.361 [0.667] | 0.030 | 0.030 (0.170) |
| Underweight: end of the year | 0.045 (0.207) | 0.040 (0.196) | 0.046 (0.210) | 0.655 [0.832] | — | — |
| BMI Z-score: beginning of the year | 0.564 (1.211) | 0.568 (1.115) | 0.562 (1.239) | 0.954 [0.964] | — | 0.733 (1.198) |
| BMI Z-score: end of the year | 0.535 (1.197) | 0.470 (1.097) | 0.555 (1.225) | 0.435 [0.364] | — | — |
| Age (months) | 52.297 (6.932) | 52.226 (6.941) | 52.319 (6.931) | 0.925 [0.904] | — | 53.263 (4.070) |
| Hispanic | 0.066 (0.245) | 0.069 (0.253) | 0.065 (0.243) | 0.793 [0.435] | 0.349 | 0.260 (0.439) |
| Black | 0.266 (0.439) | 0.341 (0.471) | 0.244 (0.427) | 0.119 [0.220] | 0.327 | 0.322 (0.467) |
| Black & white | 0.083 (0.274) | 0.113 (0.314) | 0.075 (0.260) | 0.080 [0.064] | 0.052 | 0.068 (0.252) |
| Other race | 0.013 (0.111) | 0.012 (0.108) | 0.013 (0.112) | 0.835 [0.637] | 0.038 | 0.120 (0.326) |
| White | 0.572 (0.491) | 0.465 (0.495) | 0.604 (0.485) | 0.087 [0.108] | 0.235 | 0.230 (0.421) |
| Female | 0.487 (0.500) | 0.519 (0.500) | 0.478 (0.500) | 0.127 [0.290] | 0.483 | 0.482 (0.500) |
| Disabled | 0.229 (0.420) | 0.203 (0.403) | 0.237 (0.425) | 0.292 [0.345] | 0.109 | 0.311 (0.463) |
| Family income (000s) | 15.392 (10.891) | 17.671 (12.566) | 14.706 (10.241) | 0.001 [0.179] | — | 20.475 (18.256) |
| Family size | 3.977 (1.437) | 3.849 (1.369) | 4.016 (1.455) | 0.119 [0.297] | 4.65 | 4.771 (1.630) |
| Single parent family | 0.570 (0.495) | 0.634 (0.482) | 0.550 (0.498) | 0.067 [0.330] | 0.472 | 0.422 (0.494) |
| Primary adult graduated high school | 0.639 (0.479) | 0.723 (0.445) | 0.614 (0.486) | 0.002 [0.102] | 0.620 | 0.704 (0.457) |
| Primary adult is employed full-time | 0.473 (0.499) | 0.768 (0.422) | 0.384 (0.486) | 0.000 [—] | 0.315 | 0.352 (0.478) |
| Primary adult is employed part-time | 0.151 (0.358) | 0.121 (0.326) | 0.161 (0.367) | 0.090 [—] | 0.201 | 0.156 (0.363) |
| Primary adult is in school, disabled, employed seasonally, | 0.074 (0.261) | 0.061 (0.240) | 0.077 (0.267) | 0.171 [—] | — | — |
| TANF | 0.395 (0.489) | 0.401 (0.491) | 0.393 (0.488) | 0.866 [0.951] | 0.226 | 0.283 (0.451) |
| Sample size | 1,833 | 424 | 1,409 | 3,315 | 1,100 | |
Sources: Administrative data provided by a Head Start grantee in Michigan spanning 2002 through 2006 (Columns 1 through 5). West et al. (2008) is the source for FACES data.
Notes: Standard deviations in parentheses. The p-value is calculated from a null hypothesis that the mean for full-day children equals the mean for half-day children, where the standard errors are adjusted to allow for clustering within classrooms. The p-value in brackets is calculated from a null hypothesis that the mean for full-day children equals the mean for half-day children after adjusting for the primary adult’s employment status (full-time; part-time; seasonal, retired, in school, or disabled; otherwise not in the labor force or unemployed is omitted), where the standard errors are adjusted to allow for clustering within classrooms. Statistics from FACES data are weighted to represent all children entering Head Start for the first time in Fall 2006. Statistics from ECLS-B are calculated from the four year old wave in 2005–2006 and are not weighted. The sample size for ECLS-B is rounded to the nearest 50.