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Digest of Education Statistics
2005 Tables and Figures All Years of Tables and Figures Most Recent Full Issue of the Digest


Table 39. Percentage of children demonstrating specific cognitive and motor skills, by child's age at assessment: 2001
______________________________________________________________________________________________________________________________________________________
                                        |   Percentage of children 8 through 10 months  |   Percentage of children 11 through 13 months  |  Percentage
                                        |_______________________________________________|________________________________________________| of children
                                        |           |          8|          9|         10|           |         11|         12|          13|  14 through
Specific ability                        |      Total|     months|     months|     months|      Total|     months|     months|      months|   22 months
________________________________________|___________|___________|___________|___________|___________|___________|___________|____________|____________
1                                       |          2|          3|          4|          5|          6|          7|          8|           9|          10
________________________________________|___________|___________|___________|___________|___________|___________|___________|____________|____________
     Survey population percentage ......|72.2 (0.98)|16.1 (0.82)|34.8 (0.71)|21.3 (0.61)|20.9 (0.79)|10.6 (0.49)| 6.2 (0.37)|  4.1 (0.30)|  6.5 (0.50)
                                        |           |           |           |           |           |           |           |            |
Cognitive abilities                     |           |           |           |           |           |           |           |            |
  Explores objects in play .........    |99.2 (0.03)|98.7 (0.06)|99.2 (0.02)|99.4 (0.03)|99.8 (0.02)|99.7 (0.04)|99.9 (0.01)|100.0 (0.01)|100.0 (0.01)
  Explores with purpose .............   |87.8 (0.38)|79.6 (0.75)|88.0 (0.31)|93.8 (0.27)|97.4 (0.14)|96.4 (0.26)|98.8 (0.08)| 99.4 (0.05)| 99.3 (0.10)
  Babbles ..............................|46.7 (0.41)|37.9 (0.48)|45.2 (0.33)|55.8 (0.53)|72.1 (0.43)|64.9 (0.57)|76.7 (0.63)| 84.1 (0.57)| 89.0 (0.62)
  Early problem solving .............   | 3.4 (0.11)| 1.4 (0.08)| 2.7 (0.07)| 6.0 (0.21)|17.2 (0.46)|11.2 (0.49)|20.1 (0.77)| 28.4 (0.98)| 46.4 (1.47)
  Uses words .........................  | 0.5 (0.02)| 0.2 (0.01)| 0.4 (0.01)| 1.0 (0.05)| 5.0 (0.25)| 2.7 (0.23)| 5.9 (0.42)|  9.9 (0.66)| 26.7 (1.42)
                                        |           |           |           |           |           |           |           |            |
Motor abilities                         |           |           |           |           |           |           |           |            |
  Eye-hand coordination ................|90.7 (0.13)|87.7 (0.25)|90.6 (0.16)|93.1 (0.13)|96.4 (0.11)|95.3 (0.16)|97.1 (0.16)| 98.2 (0.17)| 99.0 (0.09)
  Sitting .........................     |93.4 (0.13)|90.4 (0.28)|93.4 (0.16)|95.7 (0.13)|98.2 (0.08)|97.4 (0.13)|98.6 (0.12)| 99.3 (0.12)| 99.6 (0.06)
  Prewalking .......................    |73.2 (0.40)|63.4 (0.75)|72.9 (0.49)|81.1 (0.43)|91.4 (0.33)|88.1 (0.52)|93.6 (0.47)| 96.4 (0.53)| 98.2 (0.22)
  Independent walking ..................|18.5 (0.37)|10.4 (0.44)|16.8 (0.41)|27.4 (0.63)|55.2 (1.06)|42.9 (1.33)|62.2 (1.77)| 76.4 (1.93)| 89.1 (1.04)
  Balance ............................  | 1.1 (0.04)| 0.5 (0.03)| 0.9 (0.03)| 1.9 (0.10)|10.1 (0.50)| 5.0 (0.36)|12.6 (0.95)| 19.8 (1.34)| 43.1 (1.86)
________________________________________|___________|___________|___________|___________|___________|___________|___________|____________|____________
NOTE: This table is based on a survey that sampled children at or about 9 months of age. Standard errors appear in parentheses.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Children Born in 2001: First Results from the Base Year of the Early Childhood Longitudinal Study, Birth Cohort, 2005. (This table was prepared February 2006.)


2005 Tables and Figures All Years of Tables and Figures Most Recent Full Issue of the Digest