Table 6 Number of Tweets Analysed

Chen et al. (2016)

Shen and Kuo (2015)

de Keijser and van der Vlist (2014)

Zhang et al. (2015)

Costello et al. (2016)

Costello et al. (2017)

Bozkurt et al. (2016)

Knox (2014)

Veletsianos (2017)

Bell et al. (2016)

Fournier et al. (2014)

Kop (2011)

Enriquez-Gibson (2014a)

Abeywardena (2014)

Joksimović et al. (2015a, b) Cohort B

Skrypnyk et al. (2015)

Joksimović et al. (2015a, b)

Joksimović et al. (2015a, b) Cohort A

Tu (2014)

De Waard et al. (2011)

Salmon et al. (2015)

Alario-Hoyos et al. (2013)

van Treeck and Ebner (2013) Cohort B

van Treeck and Ebner (2013) Cohort A

Kravvaris et al. (2016)

Alario-Hoyos et al. (2014)

García-Peñalvo et al. (2015)

Spilker et al. (2015)

Cruz-Benito et al. (2015)