Whether questions and answers are transmitted between interviewer and respondent by visual or aural communication can affect the responses given. We hypothesise that communication channel can affect either the respondent's understanding of the question or the tendency to satisfice. These effects...

In terms of collecting comprehensive panel expenditure data, there are trade-offs to be made in terms of the demands imposed on respondents and the level of detail and spending coverage collected. Existing comprehensive spending data tends to be cross-sectional whilst panel studies include only...

Weiterbildungsaktivitäten gelten als schwer erinnerbare Ereignisse. Daher wurde bislang auf die retrospektive Erhebung nicht-formaler und informeller Weiterbildungsaktivitäten weitgehend verzichtet. Im Rahmen der IAB-Studie 'Arbeiten und Lernen im Wandel (ALWA)' stehen jedoch auch kurze und...

Panel data have numerous advantages to cross sectional data. Data from official statistical offices (and other public authorities) are a valuable data source for the social and economic sciences. Many of these data originally are panel data (or can be combined to form panel data). This article...

Large representative surveys are using mixed methods to an ever-increasing degree. Biomarkers, register data, and experiments, for example, provide different types of data that can be linked with survey data. The use of qualitative interviewing of participants in longitudinal surveys is still...

We assess whether the probability of a sample member participating at a particular wave of a panel survey is greater if the same interviewer is deployed as at the previous wave. Previous research on this topic mainly uses non-experimental data. Consequently, a) interviewer change is generally...

The basic concept of multiple imputation is straightforward and easy to understand, but the application to real data imposes many implementation problems. To define useful imputation models for a dataset that consists of categorical and of continuous variables with distributions that are...