Contents: 1 Development of sample sizes 2 1.1 Development of the number of successful interviews by cross-section 2 1.2 Longitudinal development of losses due to panel attrition 10 1.3 Entrants by birth or move-ins and their participation behavior 14 2 Losses due to unsuccessful follow-up 15 2.1...

Statistical Analysis in surveys is generally facing missing data. In longitudinal studies for some missing values there might be past or future data points available. The question arises how to successfully transform this advantage into improvedimputation strategies. In a simulation study the...