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| **Title:**                | Early Childhood Longitudinal Study, Birth Cohort (ECLS–B) Psychometric Report for the 2-year Data Collection                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|---------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| **Description:**          | This methodology report documents the design, development, and psychometric characteristics of the assessment instruments used in the second wave of the ECLS-B. The assessment instruments discussed measure children's cognitive development (BSF-R), socioemotional functioning (Two Bags Task), security of attachment (TAS-45), and physical development (height, weight, middle upper arm circumference (MUAC), and head circumference).  The report also includes information about interviewer observations of the child and the child's environment, as well as indirect assessments of the children through questions in the parent interview.                                                                                                                                                                                                                                                                                                                                            |
| **Online Availability:**  | - Download the complete report in a pdf format in a zip file.      (6176KB)
- Download, view and print cover, table of contents, and chapter 1as a pdf file.      (355KB)
- Download, view and print Chapter 2 as a pdf file.      (1409KB)
- Download, view and print Chapter 3 as a pdf file.      (1874KB)
- Download, view and print Chapter 4 as a pdf file.      (2971KB)
- Download, view and print Chapter 5 as a pdf file.      (212KB)
- Download, view and print Chapter 6 as a pdf file.      (172KB)
- Download, view and print Chapter 7 as a pdf file.      (156KB)
- Download, view and print Chapter 8 as a pdf file.      (241KB)
- Download, view and print Chapter 9 as a pdf file.      (140KB)
- Download, view and print Chapter 10 as a pdf file.      (209KB)
- Download, view and print the references and appendixes as a pdf file.      (193KB) |
| **Cover Date:**           | August 2007                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| **Web Release:**          | August 7, 2007                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| **Print Release:**        | This Publication will only be available online.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| **Publication #:**        | NCES 2007084General Ordering Information                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| **Center/Program:**       | NCES                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **Authors:**              | Carol Andreassen and Philip Fletcher, Westat                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| **Type of Product:**      | Technical/Methodological Report                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| **Survey/Program Areas:** | Early Childhood Longitudinal Study (ECLS)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| **Keywords:**             | Assessment                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| **Questions:**            | For questions about the content of this **Technical/Methodological Report**, please contact:Gail M. Mulligan.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|                      |

IES  NCESNational Center for Education Statistics

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