Table 1 Overview of choices in previous studies
Study | Election(s) | Width(s) | Distance | Categories used | Data type used | Multiple GT datasets | Explain / mention search term selection |
|---|---|---|---|---|---|---|---|
Peer-reviewed | |||||||
Raubenheimer et al. [22] | 2020 New Zealand cannabis referendum | 1 week; 3 months | 1 day before event | No | Hourly daily | Yes | Yes |
Prado-Román et al. [3] | 2004-2016 presidential elections US and 2004–2019 presidential elections Canada | 1/2/3 month(s) | 1 day before event | ? | Daily | No | No |
Mavragani and Tsagarakis [18] | The 2014 Scottish the 2015 Greek the 2016 UK Hungarian Italian and the 2017 Turkish Referendum | 1 week; 1 month | 1 day before event | Yes (no further explanation why) | Hourly daily | No | No |
Mavragani and Tsagarakis [23] | Greek referendum 2015 | 8 days; 1 day; 12 hours | 1 day before event & N= 0; on Referendum day | ? | Hourly | No | Yes |
Polykalas et al. [19] | 2005-2013 German Elections (only parties CDU/SPD) | 1 month | 1 day before event | ? | Daily | No | Yes |
Harkan and Eryanto [24] | 2019 Indonesian Presidential Election | 23 Sept 2018 - 16 May 2019 | 1 day before event | No | weekly? | No | No |
Polykalas et al. [14] | Greek elections 2007-2012 & Spanish national elections 2008-2011 | 1 month | 1 day; 1/2 week(s) | ? | Daily | No | Yes |
Yasseri and Bright [25] | Iranian election 2013 German election 2013 UK election 2010 | ? | ? | ? | Daily? | No | No |
Granka [6] | US Presidential Elections 4’ 8’ and 12’ | 1 month | 2 months | No | weekly | No | No |
Vergara-Perucich [26] | Chile: Presidential election 2006–2021 | 121 days | 5 days | ? | Daily | No | No |
Non-peer reviewed | |||||||
Sjövill [20a] | Swedish general election 2010-2018 | 1/2 weeks; 1 month | 1 day before event | No | Daily | No | Yes |
Wolf [15] | US Presidential Elections 16’ swing states | 2/4 Days | Depending on poll data | No | Daily hourly? | No | ? |
Askitas [17] | Greek referendum 2015 | 1 week | 1 day before event | No | Hourly | No | Yes |
Askitas [16] | Irish “Gay Marriage” Referendum 2015 | 1 week | 1 day before event | No | Hourly | No | Yes |