The authors argue that implementing a parent questionnaire would be a useful option to collect data on family issues for PISA-D. The comparison of international surveys shows that parent questionnaires are mainly used in large-scale international surveys with younger student populations (Grade 4 in PIRLS and TIMSS, Grades 3 and 6 in LLECE) as well as in the household-based surveys ASER and Uwezo, where the head of the household is interviewed in a one-on-one setting. In this regard Willms and Tramonte (2014: 20) suggest to consider an interview approach for parents in PISA-D, which would be valuable to assess parent’s literacy skills and employment, similar to the approach of household-based surveys with an international focus (LAMP, STEP, PIAAC). This is especially relevant of an interview approach, as securing response rates through one-on-one interviews is a financial burden.