To survey the general population, survey agencies often use sampling frames of landline numbers. However, these frames may exclude a relevant share of the target population. In 2012, 50% of Italian adults are excluded from the sampling frame, as they are unlisted (UN) or do not own a landline...

In this journal, Elliott and Ellingworth (1997) reported their attempts to assess the impact of certain sources of survey error on the British Crime Survey. This article attempts to correct some flaws in their article, to place their results in a wider context, and to provide some further -...