Project in detail

Analysis of Consent Rates to a dried blood spots collection in SHARE wave 6

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In recent years, there has been an upsurge in the use of biological specimens as objective health measurements in socio-economic surveys. High participation rates in the collection of biomarkers are desirable to enhance the statistical power by increasing the number of observations available for statistical analyses. Consent rates may depend on many factors. This project looks at the consent rates for the collection of dried blood spots (DBS) samples in the context of the sixth Wave of the Survey of Health, Ageing and Retirement in Europe (SHARE) and focusses on the expectations of SHARE interviewers regarding the success of the DBS collection. Interviewers expecting to be more successful in obtaining consent to the DBS collection subsequently reach higher consent rates. This association offers a possibilty to identify (and select) successful interviewers before fieldwork starts. Probably less successful interviewers can be addressed in order to help them increase their consent rates. These findings have been presented at the 7th Conference of the European Survey Research Association (ESRA) in Lisbon, Portugal, in July 2017. The paper is currently being prparated for publication. Additionally, a report on the DBS consent rates in SHARE Wave 6 has been published on the website of SERISS (Synergies for Europe's Research Infrastructures in the Social Sciences).

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