|
|
Percent
|
Child and family characteristic |
Mean motor scale score |
Eye-hand coordination |
Sitting |
Prewalking |
Independent walking |
Balance |
|
Total |
56 |
92 |
95 |
79 |
31 |
6 |
Age |
|
|
|
|
|
|
Less than 10 months |
54 |
91 |
93 |
73 |
18 |
1 |
11–13 months |
61 |
96 |
98 |
91 |
55 |
10 |
14–22 months |
70 |
99 |
100 |
98 |
89 |
43 |
Sex |
|
|
|
|
|
|
Male |
56 |
92 |
95 |
79 |
31 |
6 |
Female |
56 |
92 |
95 |
78 |
31 |
6 |
Race/ethnicity1 |
|
|
|
|
|
|
American Indian |
59 |
94 |
96 |
83 |
42 |
12 |
Asian/Pacific Islander |
57 |
93 |
95 |
80 |
33 |
6 |
Black |
58 |
93 |
96 |
82 |
36 |
7 |
White |
56 |
92 |
95 |
78 |
30 |
6 |
Hispanic |
56 |
92 |
94 |
78 |
30 |
5 |
Birth weight2 |
|
|
|
|
|
|
Normal |
57 |
93 |
95 |
79 |
31 |
6 |
Low |
55 |
90 |
93 |
72 |
24 |
4 |
Very low |
51 |
84 |
86 |
59 |
14 |
2 |
Poverty status |
|
|
|
|
|
|
Poor |
57 |
93 |
95 |
79 |
32 |
6 |
Nonpoor |
56 |
92 |
95 |
78 |
30 |
6 |
Mother’s education |
|
|
|
|
|
|
Less than high school |
57 |
93 |
95 |
79 |
32 |
6 |
High school diploma or equivalent |
57 |
93 |
95 |
79 |
32 |
6 |
Some college |
57 |
93 |
95 |
79 |
31 |
6 |
Bachelor’s degree or higher |
56 |
92 |
94 |
76 |
27 |
5 |
Family type |
|
|
|
|
|
|
Two parents, with other siblings |
56 |
92 |
94 |
77 |
29 |
5 |
Two parents, without other siblings |
57 |
93 |
95 |
79 |
31 |
6 |
One parent, with other siblings |
57 |
93 |
95 |
81 |
34 |
6 |
One parent, without other siblings |
58 |
94 |
96 |
83 |
36 |
7 |
Primary language spoken in the home |
|
|
|
|
|
|
English |
57 |
93 |
95 |
79 |
31 |
6 |
Other than English |
56 |
92 |
94 |
77 |
28 |
5 |
Number of family risk factors3 |
|
|
|
|
|
|
Zero |
56 |
92 |
95 |
78 |
29 |
6 |
One |
57 |
93 |
95 |
80 |
33 |
6 |
Two or more |
56 |
92 |
95 |
79 |
31 |
6 |
|
1American Indian includes Alaska Native, Black includes African American, Pacific Islander includes Native Hawaiian, and Hispanic includes Latino. Race catagories exclude Hispanic origin unless specified .
|
2Normal birth weight is more than 5.5 pounds; low birthweight is more than 3.3 to 5.5 pounds; and very low birthweight is 3.3 pounds or less.
|
3Family risk factors include living below the poverty level, living in a household where the primary language was not English, having a mother whose highest education was less than a high school diploma or equivalent, and living in a single-parent household. See supplemental note 1 for more information on mother’s education and poverty.
|
NOTE: While the Early Childhood Longitudinal Study, Birth Cohort (ECLS–B) was designed to collect information on children about 9 months of age (i.e., 8 to 10 months), children were assessed as young as 6 months and as old as 22 months. Seventy-two percent of the children were between 8 and 10 months at the time of the assessment, and 84 percent were between 8 and 11 months. The assessment included here is the Bayley Short Form–Research Edition (BSF–R). For more information on the BSF–R and ECLS–B, see supplemental note 3.
|
SOURCE: U.S. Department of Education, National Center for Education Statistics, Early Childhood Longitudinal Study, Birth Cohort (ECLS–B), Restricted-Use File (NCES 2004–093), previously unpublished tabulation (January 2005).
|