“…The inclusion criteria immediately excluded articles that were only concerned with the technical construction of the affective EPAs (e.g., Sabourin, Mott, & Lester, 2011), studies with qualitative research results, such as from interviews and user observation (e.g., Andrade, Bagri, Zaw, Roos, & Ruiz, 2010), and studies in which the required descriptive statistics could not be obtained (e.g., Mumm & Mutlu, 2011). In the end, 30 studies remained, which is comparable in number with previous review studies (Thomas, Alexander, Jackson, & Abrami, 2013).…”