Approximately 5,000 people in Germany between the ages of 18 and 67 who had previously participated in PIAAC and their families were surveyed for PIAAC-L. The re-survey was conducted in a total of three survey waves between 2014 and 2016:
Wave 1: Socio-Economic Background Survey
Wave I took place between March and June 2014. The aim of the survey was to precisely record the sociodemographics and living conditions of the target persons. For this purpose, a detailed biographical questionnaire was developed at SOEP. In addition, all household members over the age of 18 (adult children, life partners, etc.) were interviewed on topics that were significant in terms of content, such as educational level, income, further education and training, and cultural interests.
Wave 2: Competence measurement
The focus in wave II (2015) was on competence measurement. Within the scope of the survey, the competency tests of the domains German and mathematics developed in NEPS and PIAAC were presented. In addition to the target persons, the competencies of life partners (if available) were also to be recorded in wave II. This made it possible to answer exciting sociological questions such as the distribution of competencies in partnerships.
Wave 3: Background survey & basic cognitive abilities
In wave III (2016), one focus was on recording the basic cognitive abilities of the target persons. The short scales on basic cognitive abilities used in the SOEP were employed for this purpose. In addition, a background questionnaire was used to cover changes in the occupational field and in further education and training.