Respondent driven sampling (RDS) is a network sampling technique typically employed for hard-to-reach populations (e.g. drug users, men who have sex with men, people with HIV). Similar to snowball sampling, initial seed respondents recruit additional respondents from their network of friends. The recruiting process repeats iteratively, thereby forming long referral chains. Unlike in snowball sampling, ...
Historically, football experts' predictions were the only method of predicting the outcomes of championships. Former players, coaches, and nearly all fans have tried their hand at it. And most of these predictions were wrong, since subjective desires and prevailing public opinions always played a major role. In the meantime, however, reliable methods are being used to make scientific predictions. And ...
This article examines the implications of moving to Computer-Assisted Personal Interviewing (CAPI) for data quality by analyzing the transition from Paper-and-Pencil (PAPI) to Computer-Assisted Personal Interviewing (CAPI) on a subsample of the German Socio-Economic Panel (SOEP) conducted using an "experimental design" in Wave 1. The 2,000 addresses for the sample E of SOEP were split into two subsamples ...
In:
Journal of Official Statistics
26 (2010), 2, S. 239-269
| Jörg-Peter Schräpler, Jürgen Schupp, Gert G. Wagner