Basic Analysis, Adding Mother’s Age at Birth (AgeBirth):
Whole-Model Test
|
|---|
Source
| DF
| -LogLikelihood
| ChiSquare
| Prob>ChiSq
|
|---|
Model
| 4
| 6.77955
| 13.55909
| 0.008844
|
Error
| 2272
| 349.56619
|
|
|
C Total
| 2276
| 356.34574
|
|
|
| RSquare (U)
| 0.0190
|
|
| Observations
| 2277
|
|
Parameter Estimates
|
|---|
Term
| Estimate
| Std Error
| ChiSquare
| Prob>ChiSq
|
|---|
Intercept
| −3.90965790
| 0.7617514
| 26.34
| 0.0000
|
zAFQT89
| −0.46251520
| 0.1522804
| 9.22
| 0.0024
|
zSES
| +0.01584480
| 0.1517047
| 0.01
| 0.9168
|
zAge
| +0.25360789
| 0.1252257
| 4.10
| 0.0428
|
AgeBirth
| +0.02095854
| 0.0311104
| 0.45
| 0.5005
|
The High School Sample:
Whole-Model Test
|
|---|
Source
| DF
| -LogLikelihood
| ChiSquare
| Prob>ChiSq
|
|---|
Model
| 3
| 1.96999
| 3.93998
| 0.268019
|
Error
| 944
| 179.09080
|
|
|
C Total
| 947
| 181.06079
|
|
|
| RSquare (U)
| 0.0109
|
|
| Observations
| 948
|
|
Parameter Estimates:
|
|---|
Term
| Estimate
| Std Error
| ChiSquare
| Prob>ChiSq
|
|---|
Intercept
| −3.1278597
| 0.1778908
| 309.16
| 0.0000
|
zAFQT89
| −0.3560319
| 0.2387034
| 2.22
| 0.1358
|
zSES
| +0.0653651
| 0.2379847
| 0.08
| 0.7836
|
zAge
| +0.2490558
| 0.1681270
| 2.19
| 0.1385
|
The College Sample:
Omitted. The cross-sectional College Sample included only four low-birth-weight babies.
DEPENDENT VARIABLE:
The child’s mother was under the poverty line throughout the child’s first three years of life.
SAMPLE RESTRICTIONS:
Includes children born from January 1, 1978 through December 31, 1987, with complete data on poverty for the first three years of the child’s life, beginning with the calendar year of birth. Comparison group consists of children of mothers who were not in poverty in any of those years.
Basic Analysis:
Whole-Model Test
|
|---|
Source
| DF
| -LogLikelihood
| ChiSquare
| Prob>ChiSq
|
|---|
Model
| 3
| 79.84242
| 159.6848
| 0.000000
|
Error
| 1054
| 246.63029
|
|
|
C Total
| 1057
| 326.47271
|
|
|
| RSquare (U)
| 0.2446
|
|
| Observations
| 1058
|
|
Parameter Estimates
|
|---|
Term
| Estimate
| Std Error
| ChiSquare
| Prob>ChiSq
|
|---|
Intercept
| −2.9319316
| 0.1679177
| 304.87
| 0.0000
|
zAFQT89
| −1.1608860
| 0.1893877
| 37.57
| 0.0000
|
zSES
| −1.0386253
| 0.1734586
| 35.85
| 0.0000
|
zAge
| −0.1837537
| 0.1320334
| 1.94
| 0.1640
|
Basic Analysis, Adding Poverty Status in the Year Prior to Birth (PreBirthPov):
Whole-Model Test
|
|---|
Source
| DF
| -LogLikelihood
| ChiSquare
| Prob>ChiSq
|
|---|
Model
| 4
| 13338437
| 266.7687
| 0.000000
|
Error
| 967
| 161.88379
|
C Total
| 971
| 295.26816
|
| RSquare(U)
|
| 0.4517
|
| Observations
|
| 972
|
|
Parameter Estimates
|
|---|
Term
| Estimate
| Std Error
| ChiSquare
| Prob>ChiSq
|
|---|
Intercept
| −1.9685017
| 0.2117444
| 86.43
| 0.0000
|
zAFQT89
| −1.0772447
| 0.2375948
| 20.56
| 0.0000
|
zSES
| −0.8977385
| 0.2215879
| 16.41
| 0.0001
|
zAge
| +0.0117316
| 0.1681889
| 0.00
| 0.9444
|
PreBirthPov
|
|
|
|
|
[No-Yes]
| −1.7345986
| 0.1635206
| 112.53
| 0.0000
|
The High School Sample, Adding Poverty Status in the Year Prior to Birth (PreBirthPov):
Whole-Model Test
|
|---|
Source
| DF
| -LogLikelihood
| ChiSquare
| Prob>ChiSq
|
|---|
Model
| 4
| 68.47634
| 136.9527
| 0.000000
|
Error
| 472
| 75.99609
|
|
|
C Total
| 476
| 144.47243
|
|
|
| RSquare (U)
| 0.4740
|
|
|
| Observations (or Sum Wgts)
| 477
|
|
Parameter Estimates
|
|---|
Term
| Estimate
| Std Error
| ChiSquare
| Prob>ChiSq
|
|---|
Intercept
| −1.9504069
| 0.3232654
| 36.40
| 0.0000
|
zAFQT89
| −1.2253622
| 0.4168866
| 8.64
| 0.0033
|
zSES
| −0.5574476
| 0.3852681
| 2.09
| 0.1479
|
zAge
| 0.05808314
| 0.252284
| 0.05
| 0.8179
|
PreBirthPov
|
|
|
|
|
[No-Yes]
| −2.0368386
| 0.236268
| 74.32
| 0.0000
|
The College Sample:
Omitted. The cross-sectional College Sample included only one child whose mother was beneath the poverty line throughout the first three years.
DEPENDENT VARIABLE:
The child’s HOME index score was in the bottom decile.
SAMPLE RESTRICTIONS:
None.
ADDITIONAL CONTROL VARIABLES:
Test year (TestYr, nominal: 1986, 1988, or 1990) and the child’s age category for scoring the HOME index (HomeAgeCat, nominal, in years: 0/2, 3/5, 6+).
Basic Analysis:
Whole-Model Test
|
|---|
Source
| DF
| -LogLikelihood
| ChiSquare
| Prob>ChiSq
|
|---|
Model
| 7
| 88.9225
| 177.8451
| 0.000000
|
Error
| 5114
| 1190.6267
|
|
|
C Total
| 5121
| 1279.5492
|
|
|
| RSquare (U)
| 0.0695
|
|
| Observations
| 5122
|
|
Patameter Estimates
|
|---|
Term
| Estimate
| Std Error
| ChiSquare
| Prob>ChiSq
|
|---|
Intercep
| −2.8430001
| 0.0687859
| 1708.3
| 0.0000
|
zAFQT89
| −0.6710186
| 0.0765998
| 76.74
| 0.0000
|
zSES
| −0.2383458
| 0.0800828
| 8.86
| 0.0029
|
zAge
| −0.1428139
| 0.062902
| 5.15
| 0.0232
|
TestYr.
|
|
|
|
|
[86-901]
| +0.0128625
| 0.0858087
| 0.02
| 0.8808
|
TestYr.
|
|
|
|
|
[88-90]
| −0.0414196
| 0.0798373
| 0.27
| 0.6039
|
HomeAgeCat
|
|
|
|
|
[0/2-6+]
| +03225819
| 0.081541
| 15.65
| 0.0001
|
HomeAgeCat
|
|
|
|
|
[3/5-6+]
| −0.1338273
| 0.0852061
| 2.47
| 0.1163
|
Basic Analysis, Adding Poverty Status in the Year Before the HOME Index was Scored (PreTYPov):
Whole-Model Test
|
|---|
Source
| DF
| -LogLikelihood
| ChiSquare
| Prob>ChiSq
|
|---|
Model
| 8
| 116.4719
| 232.9438
| 0.000000
|
Error
| 4655
| 1049.6688
|
|
|
C Total
| 4663
| 1166.1407
|
|
|
| RSquare (U)
| 0.0999
|
|
| Observations
| 4664
|
|
Parameter Estimates
|
|---|
Term
| Estimate
| Std Error
| ChiSquare
| Prob>ChiSq
|
|---|
Intercept
| −2.5413180
| 0.0768882
| 1092.4
| 0.0000
|
zAFQT89
| −0.5717052
| 0.0847651
| 45.49
| 0.0000
|
zSES
| −0.1646842
| 0.0848268
| 3.77
| 0.0522
|
zAge
| −0.0836204
| 0.0673282
| 1.54
| 0.2142
|
TestYr
|
|
|
|
|
[86-90]
| Unstable
| +0.0068172
| 0.0900515
| 0.01
|
0.9397
|
|
|
|
|
TestYr
|
|
|
|
|
[88-90]
| −0.0538353
| 0.0851491
| 0.40
| 0.5272
|
HomeAge
|
|
|
|
|
Cat[0/2-6+]
| +03100371
| 0.0867081
| 12,79
| 0.0003
|
HomeAge
|
|
|
|
|
Cat[3/5-6+]
| −0.0968535
| 0.0892661
| 1.18
| 0.2779
|
PreTYPov
|
|
|
|
|
[NO-Yes]
| −0.5366001
| 0.0664395
| 65.23
| 0.0000
|
Basic Analysis, Adding AFDC Status in the Year Before the HOME Index Was Scored (PreTYDAC):
Whole-Model Test
|
|---|
Source
| DF
| -LogLikelihood
| ChiSquare
| Prob>ChiSq
|
|---|
Model
| 8
| 120.4866
| 240.9733
| 0.000000
|
Error
| 5101
| 11503749
|
|
|
C Total
| 5109
| 1270.8615
|
|
|
| RSquare (U)
| 0.0948
|
|
| Observations
| 5110
|
|
Parameter Estimates
|
|---|
Term
| Estimate
| Std Error
| ChiSquare
| Prob>ChiSq
|
|---|
Intercept
| −2.4639335
| 0.0797203
| 955.26
| 0.0000
|
zAFQT89
| −0.5835098
| 0.078223
| 55.65
| 0.0000
|
zSES
| −0.1973545
| 0.0813485
| 5.89
| 0.0153
|
zAge
| −0.0908713
| 0.0644499
| 1.99
| 0.1586
|
TestYr[86-90]
| −0.0105341
| 0.0872339
| 0.01
| 0.9039
|
TestYr[88-90]
| −0.0232495
| 0.0811592
| 0.08
| 0.7745
|
HomeAge
|
|
|
|
|
Cat[0/2-6+]
| +0.3429802
| 0.0829005
| 17.12
| 0.0000
|
HomeAge
|
|
|
|
|
Cat[3/5-6+]
| −0.1348740
| 0.0863764
| 2.44
| 0.1184
|
PreTYADC
|
|
|
|
|
[No-Yes]
| −0.5572417
| 0.0680104
| 67.13
| 0.0000
|
