Background Documentation
Weights Documentation
- Using the Weights
- Constructing the Weights
Documentation by Wave
Here you will find general documentation for the data. We highly recommend reading the User Guides for each wave of data you are using, and referring back to those when you have questions while working with the data. The User Guides include information about the data collection and file structure for each wave as well as documentation about specific scales and measures included. To link directly to documentation about specific scales, and see an overview of scales across waves, see the Scales Documentation Navigator.
| Baseline | Year 1 | Year 3 | Year 5 | Year 9 | Year 15 | Year 22 | |
| Wave 1 | Wave 2 | Wave 3 | Wave 4 | Wave 5 | Wave 6 | Wave 7 | |
| General Documentation | |||||||
| User Guide | X | X | X | X | X | X | X |
| Codebook | X | X | X | X | X | X | Y22/Child |
| Core and In-Home Questionnaires | |||||||
| Mother Survey | m1 | m2 | m3 | m4 | m5 | ||
| Father Survey | f1 | f2 | f3 | f4 | f5 | ||
| PCG Survey & Interviewer Observations | p3/o3 | p4/o4 | p5/o5 | p6/o6 | p7 | ||
| PCG Self Administered | p5 | ||||||
| Child/Teen/Young Adult Survey | k5 | k6 | k7 | ||||
| In-Home Activity Workbook | h3 | h4 | h5 | h6* | |||
| Child Care and Teacher Surveys | |||||||
| Child Care Provider Survey | d3 | ||||||
| Child Care Center Observations | e3 | ||||||
| Family Care Provider Survey | r3 | ||||||
| Family Care Provider Observations | s3 | ||||||
| Post Observation Form | u3 | ||||||
| Teacher Survey | t4 | t5 | |||||
| Sleep Study | |||||||
| Sleep Actigraphy Data (ID-mean-level) | a6 | ||||||
| Sleep Actigraphy and Diary Survey | a6/kdsd | ||||||
| Biomarker & Epigenetic Components | |||||||
| Biomarker Data | x | x | |||||
| Polygenic Scores (PGS) | x | ||||||
| Study of Adolescent Neural Development (SAND) COVID-19 Survey | |||||||
| SAND COVID-19 Survey User Guide | x | ||||||
| PCG SAND COVID-19 Survey | p7umc | ||||||
| YA SAND COVID-19 Survey | k7umc | ||||||
| mDiary Study of Adolescent Romantic Relationships | |||||||
| mDiary Study User Guide | x | ||||||
| mDiary Study Questionnaires | k6d |
Note: The links to each questionnaire also indicate the variable name prefix used in the data file for these variables. For example, Mother questions from Year 1 begin with "m2" and Teen questions from Year 15 begin with "k6".
*There is no Activity Workbook Instrument for Year 15, but there are variables with the h6 prefix.