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| 2010 Tables and Figures | All Years of Tables and Figures | Most Recent Full Issue of the Digest |
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| Table 118. | Percentage of children demonstrating specific cognitive and motor skills at about 9 months of age, by child's age and selected characteristics: 2001-02 |
| Age and selected characteristic | Number of children (in thousands) | Percentage distribu-tion of children | Percent of children who demonstrate skills1 | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Specific cognitive skills | Specific motor skills | |||||||||||||||||||||||||
| Explores objects2 | Explores purpose- fully3 | Jabbers expres- sively4 | Early problem solving5 | Names objects6 | Eye-hand coordi- nation7 | Sitting8 | Pre- walking9 | Stands alone10 | Skillful walking11 | Balance12 | ||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | |||||||||||||
| 8 through 10 months | ||||||||||||||||||||||||||
| Total | 2,882 | (39.1) | 100.0 | (†) | 98.6 | (0.06) | 83.2 | (0.54) | 29.6 | (0.57) | 3.7 | (0.13) | 0.6 | (0.03) | 89.1 | (0.26) | 86.8 | (0.24) | 64.7 | (0.60) | 18.6 | (0.50) | 8.4 | (0.21) | 1.7 | (0.09) |
| Sex of child | ||||||||||||||||||||||||||
| Male | 1,460 | (23.0) | 50.7 | (0.38) | 98.6 | (0.06) | 82.7 | (0.51) | 28.8 | (0.56) | 3.5 | (0.14) | 0.6 | (0.03) | 89.3 | (0.30) | 87.0 | (0.27) | 65.1 | (0.69) | 18.5 | (0.55) | 8.3 | (0.23) | 1.7 | (0.10) |
| Female | 1,422 | (22.0) | 49.3 | (0.38) | 98.7 | (0.09) | 83.8 | (0.68) | 30.4 | (0.71) | 3.9 | (0.18) | 0.7 | (0.05) | 88.9 | (0.36) | 86.6 | (0.33) | 64.4 | (0.78) | 18.7 | (0.67) | 8.4 | (0.29) | 1.8 | (0.14) |
| Race/ethnicity of child | ||||||||||||||||||||||||||
| White | 1,569 | (29.2) | 54.5 | (0.63) | 98.8 | (0.07) | 84.0 | (0.69) | 30.4 | (0.72) | 3.9 | (0.17) | 0.7 | (0.04) | 88.8 | (0.37) | 86.5 | (0.33) | 63.8 | (0.81) | 18.0 | (0.66) | 8.1 | (0.27) | 1.6 | (0.10) |
| Black | 381 | (11.1) | 13.3 | (0.38) | 98.1 | (0.16) | 80.8 | (0.92) | 27.8 | (0.99) | 3.3 | (0.25) | 0.6 | (0.07) | 91.0 | (0.33) | 88.6 | (0.32) | 69.7 | (0.94) | 22.8 | (1.15) | 10.4 | (0.58) | 2.6 | (0.35) |
| Hispanic | 717 | (18.5) | 24.9 | (0.54) | 98.5 | (0.13) | 82.9 | (0.82) | 29.0 | (0.84) | 3.4 | (0.21) | 0.6 | (0.05) | 88.4 | (0.47) | 86.1 | (0.43) | 63.4 | (1.00) | 17.0 | (0.77) | 7.8 | (0.32) | 1.6 | (0.15) |
| Asian | 79 | (3.1) | 2.7 | (0.10) | 98.8 | (0.13) | 83.3 | (0.96) | 28.2 | (0.92) | 3.1 | (0.20) | 0.5 | (0.04) | 89.5 | (0.53) | 87.1 | (0.49) | 65.2 | (1.21) | 18.2 | (1.00) | 8.2 | (0.39) | 1.6 | (0.14) |
| Pacific Islander | 6 | (1.5) | 0.2 | (0.05) | 98.9 | (0.23) | 81.8 | (3.58) | 23.8 | (3.22) | 2.0 | (0.47) | 0.3 | (0.07) | 95.4 | (0.97) | 93.0 | (1.13) | 79.9 | (3.81) | 34.8 | (8.69) | 15.1 | (3.90) | 3.9 | (1.67) |
| American Indian/Alaska Native | 10 | (1.1) | 0.4 | (0.04) | 98.4 | (0.30) | 80.3 | (2.72) | 27.2 | (2.49) | 3.4 | (0.70) | 0.6 | (0.18) | 90.2 | (0.99) | 87.8 | (0.91) | 66.8 | (2.15) | 19.6 | (2.08) | 8.4 | (0.80) | 1.5 | (0.29) |
| Two or more races | 115 | (9.8) | 4.0 | (0.33) | 98.6 | (0.14) | 83.0 | (1.24) | 29.8 | (1.51) | 3.9 | (0.55) | 0.8 | (0.21) | 90.0 | (0.94) | 87.8 | (0.87) | 67.7 | (2.20) | 22.1 | (2.03) | 9.6 | (0.79) | 2.0 | (0.30) |
| Months of age | ||||||||||||||||||||||||||
| 8 months | 642 | (32.8) | 29.5 | (0.90) | 97.5 | (0.14) | 67.9 | (1.04) | 15.7 | (0.53) | 1.1 | (0.09) | 0.1 | (0.02) | 84.0 | (0.52) | 82.0 | (0.46) | 52.7 | (1.08) | 8.8 | (0.63) | 4.5 | (0.22) | 0.5 | (0.05) |
| 9 months | 1,389 | (28.2) | 22.3 | (0.99) | 98.7 | (0.06) | 84.5 | (0.43) | 27.5 | (0.44) | 2.7 | (0.09) | 0.4 | (0.02) | 89.1 | (0.32) | 86.7 | (0.30) | 64.2 | (0.74) | 16.1 | (0.55) | 7.2 | (0.21) | 1.2 | (0.07) |
| 10 months | 851 | (24.2) | 48.2 | (0.76) | 99.3 | (0.07) | 92.7 | (0.33) | 43.5 | (0.74) | 7.1 | (0.27) | 1.4 | (0.08) | 92.8 | (0.26) | 90.5 | (0.25) | 74.6 | (0.63) | 30.1 | (0.85) | 13.3 | (0.42) | 3.6 | (0.25) |
| Primary type of nonparental care arrangement13 |
||||||||||||||||||||||||||
| No regular nonparental arrangement |
1,459 | (28.0) | 50.7 | (0.90) | 98.5 | (0.09) | 82.4 | (0.59) | 28.7 | (0.55) | 3.4 | (0.14) | 0.6 | (0.04) | 88.2 | (0.34) | 86.0 | (0.30) | 63.1 | (0.70) | 17.7 | (0.52) | 8.0 | (0.22) | 1.6 | (0.10) |
| Home-based care | ||||||||||||||||||||||||||
| Relative care14 | 759 | (27.1) | 26.4 | (0.81) | 98.8 | (0.08) | 84.3 | (0.67) | 30.6 | (0.79) | 3.9 | (0.22) | 0.7 | (0.06) | 90.3 | (0.35) | 87.9 | (0.33) | 67.3 | (0.84) | 20.4 | (0.81) | 9.2 | (0.38) | 2.0 | (0.19) |
| Nonrelative care15 | 430 | (17.1) | 14.9 | (0.53) | 98.8 | (0.08) | 84.7 | (0.80) | 31.3 | (1.00) | 4.3 | (0.29) | 0.8 | (0.08) | 90.0 | (0.45) | 87.6 | (0.45) | 66.1 | (1.14) | 19.3 | (1.35) | 8.7 | (0.58) | 1.8 | (0.23) |
| Center-based care16 | 211 | (13.9) | 7.3 | (0.48) | 98.6 | (0.19) | 82.8 | (1.43) | 29.3 | (1.54) | 3.5 | (0.39) | 0.6 | (0.09) | 89.0 | (0.77) | 86.7 | (0.71) | 64.0 | (1.72) | 18.0 | (1.51) | 8.3 | (0.66) | 1.9 | (0.32) |
| Multiple arrangements17 | 19 | (4.0) | 0.7 | (0.14) | 98.1 | (0.36) | 77.5 | (3.54) | 24.8 | (3.12) | 2.8 | (0.65) | 0.4 | (0.12) | 86.8 | (2.89) | 84.6 | (2.55) | 61.8 | (5.09) | 14.4 | (2.71) | 6.4 | (0.94) | 0.9 | (0.19) |
| Parents' highest level of education |
||||||||||||||||||||||||||
| Less than high school | 388 | (12.4) | 13.5 | (0.42) | 98.4 | (0.11) | 80.0 | (0.87) | 25.9 | (0.79) | 2.8 | (0.20) | 0.5 | (0.06) | 88.9 | (0.62) | 86.5 | (0.58) | 64.4 | (1.20) | 17.3 | (0.96) | 8.0 | (0.42) | 1.7 | (0.20) |
| High school completion | 702 | (19.8) | 24.4 | (0.60) | 98.4 | (0.13) | 82.6 | (0.89) | 29.2 | (0.81) | 3.6 | (0.21) | 0.7 | (0.06) | 89.6 | (0.45) | 87.3 | (0.42) | 66.8 | (0.91) | 20.6 | (0.84) | 9.1 | (0.36) | 1.9 | (0.17) |
| Some college/vocational | 847 | (24.8) | 29.4 | (0.68) | 98.7 | (0.08) | 84.4 | (0.60) | 30.8 | (0.69) | 3.9 | (0.20) | 0.7 | (0.05) | 90.0 | (0.35) | 87.7 | (0.33) | 66.7 | (0.84) | 20.8 | (0.82) | 9.3 | (0.35) | 2.0 | (0.16) |
| Bachelor's degree | 497 | (16.2) | 17.3 | (0.54) | 98.8 | (0.07) | 83.9 | (0.60) | 30.2 | (0.71) | 3.8 | (0.20) | 0.7 | (0.05) | 88.4 | (0.46) | 86.1 | (0.41) | 62.5 | (1.05) | 16.3 | (0.85) | 7.4 | (0.34) | 1.4 | (0.12) |
| Any graduate education | 446 | (15.7) | 15.5 | (0.52) | 98.8 | (0.11) | 84.0 | (0.94) | 30.4 | (0.88) | 3.8 | (0.22) | 0.7 | (0.06) | 87.5 | (0.58) | 85.4 | (0.52) | 60.5 | (1.23) | 15.2 | (0.91) | 7.0 | (0.40) | 1.4 | (0.18) |
| Poverty status18 | ||||||||||||||||||||||||||
| Below poverty threshold | 682 | (23.0) | 23.7 | (0.74) | 98.3 | (0.14) | 80.9 | (0.75) | 27.1 | (0.79) | 3.1 | (0.21) | 0.5 | (0.05) | 89.1 | (0.47) | 86.8 | (0.43) | 65.5 | (0.98) | 19.2 | (0.86) | 8.7 | (0.42) | 1.9 | (0.24) |
| At or above poverty threshold | 2,200 | (37.2) | 76.3 | (0.74) | 98.7 | (0.07) | 84.0 | (0.58) | 30.4 | (0.63) | 3.8 | (0.15) | 0.7 | (0.04) | 89.1 | (0.27) | 86.8 | (0.25) | 64.5 | (0.66) | 18.4 | (0.56) | 8.3 | (0.23) | 1.7 | (0.10) |
| Socioeconomic status19 | ||||||||||||||||||||||||||
| Lowest 20 percent | 557 | (16.8) | 19.3 | (0.58) | 98.3 | (0.13) | 80.7 | (0.72) | 26.8 | (0.69) | 3.0 | (0.17) | 0.5 | (0.04) | 89.1 | (0.46) | 86.7 | (0.43) | 65.4 | (0.90) | 18.8 | (0.83) | 8.5 | (0.35) | 1.8 | (0.18) |
| Middle 60 percent | 1,719 | (38.2) | 59.7 | (0.83) | 98.6 | (0.08) | 83.5 | (0.63) | 30.2 | (0.67) | 3.8 | (0.18) | 0.7 | (0.05) | 89.5 | (0.30) | 87.2 | (0.28) | 65.6 | (0.73) | 19.6 | (0.67) | 8.8 | (0.28) | 1.9 | (0.11) |
| Highest 20 percent | 606 | (18.4) | 21.0 | (0.63) | 98.8 | (0.09) | 84.8 | (0.73) | 30.5 | (0.79) | 3.8 | (0.18) | 0.6 | (0.04) | 88.0 | (0.45) | 85.8 | (0.40) | 61.5 | (0.96) | 15.6 | (0.66) | 7.1 | (0.28) | 1.3 | (0.13) |
| 11 through 13 months | ||||||||||||||||||||||||||
| Total | 839 | (32.2) | 100.0 | (†) | 99.7 | (0.05) | 97.3 | (0.15) | 67.9 | (0.54) | 22.5 | (0.55) | 8.2 | (0.37) | 97.1 | (0.17) | 95.6 | (0.19) | 89.0 | (0.54) | 62.5 | (1.29) | 34.9 | (0.95) | 19.1 | (0.84) |
| Months of age | ||||||||||||||||||||||||||
| 11 months | 425 | (19.6) | 50.6 | (1.54) | 99.5 | (0.10) | 95.8 | (0.28) | 57.6 | (0.77) | 14.2 | (0.59) | 4.0 | (0.33) | 95.8 | (0.28) | 93.9 | (0.29) | 84.4 | (0.86) | 49.0 | (1.74) | 24.3 | (1.05) | 10.5 | (0.77) |
| 12 months | 251 | (14.8) | 30.0 | (1.29) | 99.8 | (0.03) | 98.4 | (0.13) | 74.3 | (0.83) | 26.9 | (0.94) | 10.2 | (0.65) | 98.1 | (0.21) | 96.8 | (0.26) | 92.6 | (0.71) | 70.9 | (2.09) | 40.2 | (1.65) | 22.9 | (1.50) |
| 13 months | 163 | (12.1) | 19.4 | (1.16) | 100.0 | (†) | 99.5 | (0.08) | 85.0 | (0.62) | 37.7 | (1.04) | 16.0 | (0.87) | 99.0 | (0.27) | 98.2 | (0.30) | 95.8 | (0.85) | 84.8 | (2.24) | 54.4 | (1.81) | 36.0 | (1.83) |
| 14 through 22 months | 260 | (19.7) | 100.0 | (†) | 100.0 | (†) | 99.5 | (0.14) | 90.0 | (0.60) | 58.4 | (1.44) | 40.8 | (1.71) | 99.5 | (0.12) | 99.1 | (0.13) | 98.3 | (0.28) | 94.1 | (0.91) | 74.0 | (1.35) | 61.7 | (1.82) |
| †Not applicable. | ||||||||||||||||||||||||||
| 1 Based on assessments collected using the Bayley Short Form Research Edition (BSF-R), a shortened field method of administering the Bayley Scales of Infant Development-II (BSID-II) (Bayley 1993). The scores are fully equated with the BSID-II; for more information, see NCES's Early Childhood Longitudinal Study, Birth Cohort (ECLS–B) Psychometric Report for the 2-year Data Collection. The proficiency probabilities indicate mastery of a specific skill or ability within mental or physical domains. | ||||||||||||||||||||||||||
| 2 Ability to explore objects, for example, reaching for and holding objects. The child may have no specific purpose except to play or discover. | ||||||||||||||||||||||||||
| 3 Ability to explore objects with a purpose, such as to explore a bell to understand the source of the sound. | ||||||||||||||||||||||||||
| 4 Measures proficiency in communication through diverse nonverbal sounds and gestures, such as vowel and vowel-consonant sounds. | ||||||||||||||||||||||||||
| 5 Measures proficiency in engaging in early problem solving, such as using a tool to reach an out-of-reach toy or locating a hidden toy. | ||||||||||||||||||||||||||
| 6 Measures proficiency in early communication skills, such as saying simple words like "mama" and "dada." | ||||||||||||||||||||||||||
| 7 Measures proficiency in being able to use visual tracking to guide hand movements to pick up a small object. | ||||||||||||||||||||||||||
| 8 Measures proficiency in ability to maintain control of the muscles used in sitting with and without support. | ||||||||||||||||||||||||||
| 9 Measures proficiency in ability to engage in various prewalking types of mobility, with and without support, such as shifting weight from one foot to the other. | ||||||||||||||||||||||||||
| 10 Measures proficiency in ability to walk with help and to stand independently. | ||||||||||||||||||||||||||
| 11 Measures proficiency in being able to walk independently. | ||||||||||||||||||||||||||
| 12 Measures proficiency in ability to maintain balance while shifting position. | ||||||||||||||||||||||||||
| 13 The type of nonparental care in which the child spent the most hours. | ||||||||||||||||||||||||||
| 14 Care provided in the child's home or in another private home by a relative (excluding parents). | ||||||||||||||||||||||||||
| 15 Care provided in the child's home or in another private home by a person unrelated to the child. | ||||||||||||||||||||||||||
| 16 Care provided in places such as early learning centers, nursery schools, and preschools. | ||||||||||||||||||||||||||
| 17 Children who spent an equal amount of time in each of two or more arrangements. | ||||||||||||||||||||||||||
| 18 Poverty status based on Census Bureau guidelines from 2002, which identify a dollar amount determined to meet a household's needs, given its size and composition. In 2002, a family of four was considered to live below the poverty threshold if its income was less than or equal to $18,392. | ||||||||||||||||||||||||||
| 19 Socioeconomic status (SES) was measured by a composite score based on parental education and occupations, and family income. | ||||||||||||||||||||||||||
| NOTE: This table is based on a survey that sampled children born in 2001 and was designed to collect information about them for the first time when the children were about 9 months of age (i.e., 8 to 10 months). As shown in the table, some children were older than this, although only 6.5 percent were over 13 months of age. Estimates weighted by W1C0. Race categories exclude persons of Hispanic ethnicity. Detail may not sum to totals because of rounding and survey item nonresponse. Standard errors appear in parentheses. Some data have been revised from previously published figures. |
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| SOURCE: U.S. Department of Education, National Center for Education Statistics, Early Childhood Longitudinal Study, Birth Cohort 9-month–Kindergarten 2007 Restricted-Use Data File and Electronic Codebook. (This table was prepared December 2010.) |
