Independent variables

Ages

Number of juvenile offenses, ages 7-17

Seriousness of juvenile offenses, ages 7-17

Pregnancy and delivery conditions

Birth

NS

NS

Mother's education

Birth

NS

NS

Father's education

Birth

NS

NS

Family income

Birth

NS

NS

Time father unemployed

Birth

0.179***

0.115**

Hand preference

1

NS

NS

Stanford-Binet

4

NS

NS

Hand preference

4

NS

NS

Eye preference

4

NS

0.059**

Foot preference

4

NS

NS

Neurological abnormalities

7

NS

NS

Abnormal movements

7

NS

NS

Abnormal Vision

7

NS

NS

Lead Intoxication

7

 0.149***

 0.143**

Anemia

7

NS

0.044*

Intellectual Status

7

NS

NS

Speech

7

0.045*

NS

Foster Parents

7

NS

NS

Father Absence

Birth-7

NS

NS

Household moves

Birth-7

0.092*

0.112

Persons supported

7

NS

0.09**

Family income

7

NS

NS

 r2

 

.157

.128

(n = 487) *p < .05 ** p < .01 *** p < .0005 NS = Not Significant
Table 2: Factors Predicting Juvenile Delinquency, Males in Philadelphia Biosocial Study (source: ref. 16).