•  Klatzka, C., Baum, M. A., & Hahn, E. (2019). Selective or random panel dropout? An investigation of personality and relationship parameters (TwinLife Working Paper Series, 03). Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes). PUB | File

•  Carroll, S., & Turkheimer, E. (2018). Item response theory analysis of the cognitive ability test in TwinLife (TwinLife Working Paper Series, 02). Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes). PUB | File

•  Lenau, F., Hahn, E., Peters, A. - L., Gottschling, J., Thiel, W., & Spinath, F. M. (2017). Zygosity Determination in Twin Studies: a Validation of Zygosity Questionnaires Using DNA in the German TwinLife Study (TwinLife Working Paper Series, 01). Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes). PUB | File

Technical Reports

TwinLife Technical Reports sind wissenschaftliche Beiträge, die sich mit der technischen Darstellung der Daten (z. B. Datendokumentation, Feldberichte, etc.) und mit Methodenfragen beschäftigen. Da es sich hierbei um in Arbeit befindliche wissenschaftliche Beiträge handelt, sollten etwaige Kommentare und Fragen zu den Manuskripten direkt an die Autoren gerichtet werden.

Herausgeber: Martin Diewald, Christian Kandler, Rainer Riemann und Frank M. Spinath

Hinweis: Für einige der Technical Reports gibt es mehrere überarbeitete Versionen (siehe "Version History"). Bitte nutzen Sie aber immer die aktuellste Version, wenn möglich.

• Technical Report 21

  Andreas, A. & Klatzka, C. H. (2025).
  TwinLife Balloon Analogue Risk Task (BART) (TwinLife Technical Report Series, 21, v.1.0.0).
  Project TwinLife – "Genetic and social causes of life chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes).
  PUB | File
  

• Technical Report 20

  Torregroza, S., Eibelshäuser, S., & Hess, D. (2025).
  TwinLife survey methodology and fieldwork outcomes. Face-to-face survey of wave 5 (F2F 5a/b, 2022-2024) (TwinLife Technical Report Series, 20, v.1.0.0).
  Project TwinLife – "Genetic and social causes of life chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes).
  PUB | File
  

• Technical Report 19

  Ruks, M., Kottwitz, A., Weigel, L., Klatzka, C. H., Paulus, L., & Deppe, M. (2025).
  TwinLife survey methodology and fieldwork outcomes. K2ID Supplementary Survey (TwinLife Technical Report Series, 19, v1.0.0).
  Project TwinLife – "Genetic and social causes of life chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes).
  PUB | File
  

• Technical Report 18

  Torregroza, S., Eibelshäuser, S., & Hess, D. (2024). 
  TwinLife survey methodology and fielwork outcomes. Telephone survey of wave 4 (CATI 4a/b, 2021-2023) (TwinLife Technical Report Series, 18, v1.0.1).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes).
  PUB | File | Version History: 1.0.0
  

• Technical Report 17

  Torregroza, S., Eibelshäuser, S., & Hess, D. (2024).
  TwinLife survey methodology and fielwork outcomes. Face-to-face survey of wave 4 (F2F 4a/b, 2020-2022) (TwinLife Technical Report Series, 17, v1.0.1).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes).
  PUB | File | Version History: 1.0.0
  

• Technical Report 16

  Dang, E. T. T., & Klatzka, C. H. (2025).
  Global Physical Activity Questionnaire (GPAQ) F2F3 & F2F5 (TwinLife Technical Report Series, 16, v2.0.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes).
  PUB | File | Version History: 1.0.0
  

• Technical Report 15

  Krell, K., & Ruks, M. (2023).
  TwinLife Survey Weights (TwinLife Technical Report Series, 15, v1.0.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes).
  PUB | File
  

• Technical Report 14

  Torregroza, S., Prussog-Wagner, A., & Hess, D. (2022).
  TwinLife survey methodology and fieldwork outcomes. Telephone survey of wave 3 subsample a and b (CATI 3a/b, 2019-2021) (TwinLife Technical Report Series, 14, v1.0.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes).
  PUB | File
  

• Technical Report 13

  Lesaar, S., Prussog-Wagner, A., Quandt, S., & Hess, D. (2022).
  TwinLife survey methodology and fieldwork outcomes. Face-to-face survey of wave 3 (F2F 3a/b) (TwinLife Technical Report Series, 13, v1.0.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes).
  PUB | File
  

• Technical Report 12

  Lesaar, S., Prussog-Wagner, & A., Hess, D. (2021). 
  TwinLife methodology and fieldwork outcomes. Telephone survey of wave 2 subsample a and b (CATI 2a/b, 2017 – 2019) (TwinLife Technical Report Series, 12, v1.0.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes).
  PUB | File
  

• Technical Report 11

  Krell, K., Nikstat, A., Kottwitz, A., Ruks, M., Deppe, M., Baum, M. A., Eifler, E. F., Hufer-Thamm, A., Klatzka, C. H., Lang, V., Mönkediek, B., Starr, A., & Weigel, L. (2024).
  TwinLife ShortGuide (TwinLife Technical Report Series, 11, v1.5.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes).
  PUB | File | Version History: 1.3.0 | 1.4.0
  

• Technical Report 10

  Lesaar, S., Prussog-Wagner, A., & Hess, D. (2020). 
  TwinLife survey methodology and fieldwork outcomes. Face-to-face survey of wave 2 (F2F 2a/b) (TwinLife Technical Report Series, 10, v1.0.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes).
  PUB | File
  

• Technical Report 09

  Lesaar, S., Prussog-Wagner, A., & Hess, D. (2020). 
  TwinLife survey methodology and fieldwork outcomes. Telephone survey of wave 1 subsample b (CATI 1b) (TwinLife Technical Report Series, 09, v1.0.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes).
  PUB | File
  

• Technical Report 08

  Klatzka, C. H., Baum, M. A., Paulus, L., Nikstat, A., Dang, E. T. T., Andreas, A., Iser, J., & Hahn, E. (2023). 
  TwinLife Scales Manual. (TwinLife Technical Report Series, 08, v3.0.1).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes).
  PUB | File
  

• Technical Report 07

  Starr, A., Nikstat, A., Mattheus, S., Kaempfert, M., & Hufer, A. (2021). 
  Documentation TwinLife Data: Filtering inconsistencies in discrimination items (TwinLife Technical Report Series, 07, v1.1.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes).
  PUB | File
  

• Technical Report 06

  Klatzka, C. H. & Paulus, L. (2025). 
  Documentation TwinLife Data: Height, Weight, and BMI (TwinLife Technical Report Series, 06, v4.0.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes). 
  PUB | File | Version History: 1.0.0 | 3.0.0
  

• Technical Report 05

  Brix, J., Pupeter, M., Rysina, A., Steinacker, G., Schneekloth, U., Baier, T., Gottschling, J., Hahn, E., Hufer, A., Kaempfert, M., Kornadt, A., Krell, K., Lang, V., Lenau, F., Mattheus, S., Nikstat, A., Peters, A.-L., Schulz, W., Schunck, R., . . . & Spinath, F. M. (2017). 
  A longitudinal twin family study of the life course and individual development (TwinLife): Data collection and instruments of wave 1 face-to-face interviews (TwinLife Technical Report Series, 05).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes).
  PUB | File
  

• Technical Report 04

  Instinske, J., Rohm, T., Mattheus, S., Starr, A., & Riemann, R. (2022). 
  Documentation TwinLife Data: Report Cards (TwinLife Technical Report Series, 04, v2.0.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes).
  PUB | File | Version History: 1.1.0
  

• Technical Report 03

  Lang, V., & Kottwitz, A. (2017). 
  The sampling design and socio-demographic structure of the first wave of the TwinLife panel study: a comparison with the Microcensus (TwinLife Technical Report Series, 03).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes).
  PUB | File
  

• Technical Report 02

  Klatzka, C. H., & Paulus, L. (2024). 
  Documentation TwinLife Data: Cognitive Abilities (TwinLife Technical Report Series, 02, v2.0.0).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität Bremen; Universität des Saarlandes).
  PUB | File | Version History: 1.0.0
  

• Technical Report 01

  Lenau, F., & Hahn, E. (2017).
  Documentation TwinLife Data: Zygosity (TwinLife Technical Report Series, 01).
  Project TwinLife – "Genetic and Social Causes of Life Chances" (Universität Bielefeld; Universität des Saarlandes).
  PUB | File