In addition to wording updates, an experiment on additional consent information placement was included. Eight help links with additional information were devised for this question. Half of respondents were presented with these links between the text and immediately before the consent question, all on one page. The other half were first asked to indicate whether they wanted more information in the response options before deciding, and if so the eight help links were presented on a separated page with the consent question.
Respondents were asked about whether they use Twitter and, if so, their willingness to link their Twitter account to their survey responses. The main goal of the research was to obtain consent to linkage. Given consent had previously been sought at IP10, this module allows for testing in change of consent for those asked previously, as well as asking consent for the first time of IP11 and IP14 refreshment samples.
The controlling variable, equally allocated at the household-level, is on record o_hhsamp_ip:
ff_twithelpw15 (1/2 each, allocation stratified by sampleorig ff_incentw15 ff_gridmodew15 l_hhmodes)
1 = Help links on same page
2 = Help links on separate page
The questions used for this experiment are in file o_indresp_ip:
twithave, twitlinka, twitlinkb, twitlinkinfo
