The Bell Curve: Intelligence and Class Structure in American Life (104 page)

Read The Bell Curve: Intelligence and Class Structure in American Life Online

Authors: Richard J. Herrnstein,Charles A. Murray

Tags: #History, #Science, #General, #Psychology, #Sociology, #Genetics & Genomics, #Life Sciences, #Social Science, #Educational Psychology, #Intelligence Levels - United States, #Nature and Nurture, #United States, #Education, #Political Science, #Intelligence Levels - Social Aspects - United States, #Intellect, #Intelligence Levels

BOOK: The Bell Curve: Intelligence and Class Structure in American Life
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DEPENDENT VARIABLE:
Divorced within the first five years of marriage.

SAMPLE RESTRICTIONS:
Persons married prior to January 1, 1986.

Basic Analysis,
Adding Date of First Marriage (MarDate 1):
 

Whole-Model Test

Source
DF
-LogLikelihood
ChiSquare
Prob>ChiSq
Model
4
21.8881
43.77626
0.000000
Error
2026
991.3719
 
 
C Total
2030
1013.2600
 
 
 
RSquare (U)
0.0216
 
 
Observations
2031
 

Parameter Estimates

Term
Estimate
Std Error
ChiSquare
Prob>ChiSq
Intercept
+5.70860970
1.9858067
8.26
0.0040
zAFQT89
−0.35734009
0.0781258
20.92
0.0000
zSES
+0.22195410
0.0787612
7.94
0.0048
zAge
−0.17766944
0.0741478
5.74
0.0166
MarDatel
−0.08677335
0.0243113
12.74
0.0004
The High School Sample, Adding Date of First Marriage (MarDate 1):
 

Whole-Model Test

Source
DF
−LogLikihood
ChiSquare
Prob>ChiSq
Model
4
3.54304
7.086073
0.131409
Error
870
428.70643
 
 
C Total
874
432.24947
 
 
 
RSquare (U)
0.0082
 
 
Observations
875
 

Parameter Estimates

Term
Estimate
Std Error
ChiSquare
Prob>ChiSq
Intercept
+5.4451395
3.1286887
3.03
0.0818
zAFQT89
−0.0379171
0.1348129
1.08
0.7785
zSES
+0.2206925
0.1288222
2.93
0.0867
zAge
−0.1078057
0.1146773
0.88
0.3472
MarDatel
−0.0839950
0.0383236
4.80
0.0284
The College Sample, Adding Date of First Marriage (MarDate 1):
 

Whole-Model Test

Source
DF
-LogLikelihood
ChiSquare
Prob>ChiSq
Model
4
5.548154
11.09631
0.025503
Error
204
48.414468
 
 
C Total
208
53.962623
 
 
 
RSquare (U)
0.1028
 
 
Observations
209
 

Parameter Estimates

Term
Estimate
Std Error
ChiSquare
Prob>ChiSq
Intercept
+32.392875
13.508886
5.75
0.0165
zAFQT89
−0.75619367
0.4502182
2.82
0.0930
zAge
−0.55875424
0.4046911
1.91
0.1674
MarDatel
−0.41113710
0.1629791
6.36
0.0116
Basic analysis, Adding Parental Living Arrangements at Age 14 (Adultl4):
 

Whole-Model Test

Source
DF
-LogLikelihood
ChiSquare
Prob>ChiSq
Model
6
16.7457
33.49136
0.000008
Error
2022
994.6771
 
 
C Total
2028
1011.4228
 
 
 
RSquare (U)
0.0166
 
 
Observations
2029

Parameter Estimates

Term
Estimate
Std Error
ChiSquare
Prob>ChiSq
Intercept
−1.2952650
0.1066175
147.59
0.0000
zAFQT89
−0.3925580
0.0774209
25.71
0.0000
zSES
+0.1910425
0.0783345
5.95
0.0147
zAge
−0.0278086
0.0617722
0.20
0.6526
Adult14
 
 
 
 
[2 Bio−UnmarMom]
−0.1472662
0.117616
1.57
0.2105
Adult14
 
 
 
 
[Bio/Step−UnmarMom]
+0.0621918
0.1601525
0.15
0.6978
Adult14
 
 
 
 
[Other−UnmarMom]
−0.0872024
0.2553089
0.12
0.7327

DEPENDENT VARIABLE:
First birth out of wedlock.

SAMPLE RESTRICTIONS:
Women with at least one child.

Basic Analysis:
 

Whole-Model Test

Source
DF
-LogLikelihood
ChiSquare
Prob>ChiSq
Model
3
39.86862
79.73723
0.000000
Error
1217
461.90618
 
 
C Total
1220
501.77480
 
 
 
RSquare (U)
0.0795
 
 
Observations
1221
 

Parameter Estimates

Term
Estimate
Std Error
ChiSquare
Prob>ChiSq
Intercept
−1.9432320
0.0938185
429.01
0.0000
zAFQT89
−0.6537960
0.1239489
27.82
0.0000
zSES
−0.3052597
0.1189878
6.58
0.0103
zAge
−0.2405246
0.0902516
7.10
0.0077
The High School Sample:
 
Whole-Model Test
 
Source
DF
-LogLikelihood
ChiSquare
Prob>ChiSq
Model
3
15.09449
30.18898
0.000001
Error
512
187.89956
 
 
C Total
515
202.99405
 
 
 
RSquare (U)
0.0744
 
 
Observations
516
 
Parameter Estimates
 
Term
Estimate
Std Error
ChiSquare
Prob>ChiSq
Intercept
−2.1890354
0.1658602
174.19
0.0000
zAFQT89
−0.7846895
0.2142378
13.42
0.0002
zSES
−0.2428727
0.2165927
1.26
0.2621
zAge
−0.4145066
0.1447961
8.20
0.0042
The College Sample:
 

Whole-Model Test

Source
DF
-LogLikelihood
ChiSquare
Prob>ChiSq
Model
3
1.1299340
2.259868
0.520253
Error
112
4.6193334
 
 
C Total
115
5.7492674
 
 
 
RSquare(U) 0.1965
 
 
Observations 116
 
Parameter Estimates
 
Term
Estimate
Std Error
ChiSquare
Prob>ChiSq
Intercept
−6.37685240
3.9705049
2.58
0.1083
zAFQT89
−0.31644570
1.9844225
0.03
0.8733
zSES
−0.72608390
1.5248314
0.23
0.6340
zAge
+2.58214793
2.8423709
0.83
0.3636
Basic analysis, Adding Living Arrangements with Adults at Age 14 (Adult 14):
 

Whole-Model Test

Source
DF
-LogLikelihood
ChiSquare
Prob>ChiSq
Model
6
46.62389
93.24777
0.000000
Error
1214
455.15091
 
 
C Total
1220
501.77480
 
 
 
RSquare (U)
0.0929
 
 
Observations
1221
 

Parameter Estimates

Term
Estimate
Std Error
ChiSquare
Prob>ChiSq
Intercept
−1.8260275
0.1541482
140.33
0.0000
zAFQT89
−0.6620720
0.1259903
27.61
0.0000
zSES
−0.2460336
0.1221771
4.06
0.0440
zAge
−0.2109268
0.0909302
5.38
0.0204
Adult14
 
 
 
 
[2 Bio−UnmarMom]
−0.2816545
0.1634249
2.97
0.0848
Adult14
 
 
 
 
[Bio/Step−UnmarMom]
+0.2928507
0.206926
2.00
0.1570
Adult14
 
 
 
 
[Other−UnmarMom]
−0.4991684
0.3593261
1.93
0.1648
Basic analysis, Adding Presence of Biological Parents at Age 14 (14Bio):
 

Whole-Model Test

Source
DF
-LogLikelihood
ChiSquare
Prob>ChiSq
Model
6
47.56391
95.12783
0.000000
Error
1214
454.21088
 
 
C Total
1220
501.77480
 
 
 
RSquare (U)
0.0948
 
 
Observations
1221

Parameter Estimates

Term
Estimate
Std Error
ChiSquare
Prob>ChiSq
Intercept
−2.0199123
0.2037839
98.25
0.0000
zAFQT89
−0.6567746
0.1250691
27.58
0.0000
zSES
−0.2479794
0.1214895
4.17
0.0412
zAge
−0.2037178
0.0910296
5.01
0.0252
14Bio
 
 
 
 
[MomOnly−PopOnly]
+0.6528652
0.2233927
8.54
0.0035
14Bio
 
 
 
 
[Mom/Pop−PopOnly]
−0.0862208
0.2102335
0.17
0.6817
14Bio[Neither−PopOnly]
−0.2371231
0.4150982
0.33
0.5678
Basic Analysis, Adding Poverty Status in the Calendar Year Prior to Birth (PreBirthPov):
 

Whole-Model Test

Source
DF
-LogLikelihood
ChiSquare
Prob>ChiSq
Model
4
63.21118
126.4224
0.000000
Error
956
292.73717
 
 
C Total
960
355.94835
 
 
 
RSquare (U)
0.1776
 
 
Observations
961
 

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