In der vorliegenden Studie wird untersucht, inwiefern sich der Einsatz eines spezifischen Zeitfensters bei Survey-Abfragen zum ehrenamtlichen und freiwilligen Engagement - im Vergleich zu Survey-Abfragen mit unspezifischen Zeitfenstern - auf die Selbstangaben von Befragten auswirkt. Die...

Labor market statistics are critical for assessing and understanding economic development. In practice, widespread variation exists in how labor statistics are measured in household surveys in low-income countries. Little is known whether these differences have an effect on the labor statistics...

This paper concentrates on the trends in peer-reviewed longitudinal panel studies under scientific direction. Household panel studies have succeeded in broadening their disciplinary scope. Numerous innovations such as questions dealing with psychological concepts, and age-specific topical...

When properly implemented, Randomized Controlled Trials (RCT) can achieve a high degree of internal validity. Yet, if an RCT is to inform policy interventions that extend beyond the experimental population, it is critical to establish external validity. In this paper, we first present a...

This paper reviews literature dealing with the issue of detecting interviewers who falsify survey data. The most reliable method of detecting falsifiers is through face-to-face reinterviewing of survey participants. However, only a limited number of participants can usually be reinterviewed. A...

Since it is still unclear to what extent time allocation retrospectively reported in questionnaires, reflects people's actual behavior, examining the accuracy of responses to time use survey questions is of crucial importance. We analyze the congruence of time use information assessed through...

The security of natural gas supply is an important issue for all EU countries due to the region's heavy dependence on imported supply sources and in light of energy demand for gas that is continuously increasing. Discussions have emphasised strategies for securing the supply at the macro level,...

Labor market statistics are critical for assessing and understanding economic development. In practice, widespread variation exists in how labor statistics are measured in household surveys in low-income countries. Little is known whether these differences have an effect on the labor statistics...

When properly implemented, Randomized Controlled Trials (RCT) can achieve a high degree of internal validity. Yet, if an RCT is to inform policy interventions that extend beyond the experimental population, it is critical to establish external validity. In this paper, we first present a...

Zimbabwe, just like many other developing nations has its economic growth path mapped mainly by the agricultural sector. The agricultural sector has been labelled the backborne of many economies, and countries are reprioritizing agriculture and food security as paramount to human development....