“…So far, a few studies have scientifically mapped the use of social media in education. They are either focusing on one platform such as Twitter (e.g., Malik, Heyman-Schrum, & Johri, 2019) and Facebook (e.g., Manca & Ranieri, 2013, 2016, or on social media in general but within a specific subfield of education (e.g., Bruguera et al, 2019;Reinhardt, 2019;Sterling et al, 2017). Other reviews zeroed in on one platform only within a specific subfield of education (e.g., Barrot, 2018;Coleman & O'Connor, 2019;Nagle, 2018).…”