Project description
Data access
Visit the TREE homepage
Project description
A Swiss longitudinal youth study 2001-2007
TREE, a unique longitudinal survey of its type in Switzerland, studies various pathways of a cohort of young people in Switzerland from post-compulsory education into the labour market. It is based on a nationally representative sample of approximately 6,000 young people who participated in the PISA survey of 2000 and who completed compulsory education the same year. TREE is carried out using standardised written questionnaires and telephone interviews.
The data from TREE are very rich and provide a wide range of possibilities for analysis. For example, the data enable analysis of the process between graduation from compulsory school and young adulthood. One advantage of the TREE data lies in the possibility to relate the modalities of labour market entry to skills on the one hand, and the characteristics of the previous educational pathways on the other. Another advantage is that it allows analysis of factors such as gender, migration background, and social status in relation to the duration and conditions of job search activities, the presence or absence of periods of unemployment, and precarious employment and/or job-skills mismatch.
Pathway analyses of TREE data are not limited to the formal labour market. Sample and survey design also allow for analysis of pathways and biographical developments on the fringes or outside of the (formal) labour market. Furthermore, the TREE dataset, with more than 2,000 surveyed young people who have passed through basic vocational education and training, allows for analysis of groups of professions or economic sectors.
Since 2008, TREE has been co-financed by the Swiss National Science Foundation SNSF and the University of Basel, where the project is currently hosted. Before that, the financial and organisational responsibility of TREE was –besides the SNSF — carried by a number of cantonal and federal administrations and offices. The project is co-managed by Dr. Sandra Hupka-Brunner, Thomas Meyer, and Prof. Max Bergman.
Phase 1: 2001-2003
During the first phase, until 2003, three yearly follow-up surveys were carried out for TREE. The main interest was in capturing the variety of different pathways in the interval between compulsory school and post-compulsory education. The focus of this first phase was in the circumstances, process characteristics, and effects of so-called irregular or critical educational carreers, especially the premature drop out from educational careers (youth who are left without a post-compulsory qualification).
Phase 2: 2004-2007
In a second phase of TREE (four yearly follow-ups between 2004 and 2007) the main focus of the survey was on the transition between post-compulsory education (e.g., apprenticeship, grammar school/high school) into professional life or higher education.
Phase 3: 2008-2012
In a third phase currently underway, a complementary survey was carried out in 2010, 10 years after the end of compulsory schooling. You will find more information at http://tree.unibas.ch/en/home/.
You can find more information on the study and datasets in our data catalogue (in German/French).
Access to the data
TREE data and the corresponding documentation are made available by FORS to interested researchers. To get access to the data, please fill in the form below (including a short description of your project) and return it either by using the send-button on the form or by attaching the completed form to an email.
FORS distributes the current TREE data sets, including the corresponding PISA 2000 data, with the available documentation. Below is a listing of the documentation and data organised by wave.
| | PISA-2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2010 |
|---|
| Data |
1 file (en) |
1 file |
1 file |
1 file |
1 file |
1 file |
1 file |
1 file |
1 file |
| Questionnaires |
School and student questionnaires (en, d, f, i) |
(d, f, i) |
(d, f, i) |
(d, f, i) |
(d, f, i) |
(d, f, i) |
(d, f, i) |
(d, f, i) |
(d, f, i) |
| Label syntaxes |
- |
(f, d) |
(f, d) |
(f, d) |
(f, d) |
(f, d) |
(f, d) |
(f, d) |
(f, d) |
| Codebooks |
Complementary variables (en, d, f) |
(d/f, en) |
(d/f, en) |
(d/f, en) |
(d/f, en) |
(d/f, en) |
(d/f, en) |
(d/f, en) |
(d/f, en) |
| Frequency tables |
- |
(en) |
(en) |
(en) |
(en) |
(en) |
(en) |
(en) |
(en) |
| Other Documentation |
 PISA manual (en)
Technical report orig. variables (en)
PISA VET-codes
Parental education measures: solutions to problems (en) |
TREE longitudinal weights: construction of TREE panel weights (en, d)
TREE longitudinal weights codebook and auxiliary variables for estimation variables (en, d)
TREE project documentation 2000-2010 (d, en, f)
TREE concepts and scales (d, en, f)
TREE data certificates (d, with label syntax (f and en), codebook (d, en, f))
Questionnaire guideline (en)
VET-professions rating (d)
Overview of variables by waves 1-7 (d) |
