- Overview and getting started
- 1. About TwinLife
- 2. Documentation of the study
-
3. Data Structure
- 3.1 Data Formats and Data Files
- 3.2 Person Types
- 3.3 System of Variable Names
- 3.4 ID Variables, Wave and Data Collection Identifiers
- 3.5 Missing Types and their Meanings
- 3.6 Delivered Para Data
- 3.7 Weights
- 3.8 Pecularities of Data
- 3.9 How to match the Data Files
- 3.10 Matching information from the parent-about-child questionnaire to the child's data set
- 4. Check Routines
- 5. Generated Variables and Scales
- 6. Publications and Citation
- 7. Useful Links
- Overview and getting started
- 1. About TwinLife
- 2. Documentation of the study
-
3. Data Structure
- 3.1 Data Formats and Data Files
- 3.2 Person Types
- 3.3 System of Variable Names
- 3.4 ID Variables, Wave and Data Collection Identifiers
- 3.5 Missing Types and their Meanings
- 3.6 Delivered Para Data
- 3.7 Weights
- 3.8 Pecularities of Data
- 3.9 How to match the Data Files
- 3.10 Matching information from the parent-about-child questionnaire to the child's data set
- 4. Check Routines
- 5. Generated Variables and Scales
- 6. Publications and Citation
- 7. Useful Links
2.5 Technical Report Series, Methodology Reports, and Working Paper Series
The TwinLife Technical Reports (ISSN: 2512-403X) are scientific contributions dealing with both technical aspects of data presentation (e.g., sampling design and data collection, data documentations, field reports, etc.) and methodological questions. The version number of a technical report consists of three digits separated by dots (e.g., v1.0.0). The first digit marks significant changes (major release), the second digit designates extensions and additions (minor release), and the 3rd digit contains only bug fixes (revision level).
The Methodology Reports (first-authored by the survey institutes) contain detailed information on the data collection and the instruments included in each survey wave and are part of the Technical Report Series.
The TwinLife Working Papers (ISSN 2512-4048) are refereed scholarly papers that provide a forum for presenting work in progress.
All Technical Reports (including the Methodology Reports) and Working Papers are available ➔ here.
Are you using the TwinLife data?
The TwinLife Working Paper Series and the TwinLife Technical Report Series are open for your submission! Contributions are reviewed by the editors before a decision on publication is made. Please submit your manuscript to This email address is being protected from spambots. You need JavaScript enabled to view it..