“…Heterogeneity was also observed in the conceptualization of existing pornography modalities. While some studies did not specify any type of modality (Dawson et al, 2020; Dogan and Yassa, 2019; Duggan and McCreary, 2004; Laemmle-Ruff et al, 2019; Leickly et al, 2017; O’Brien et al, 2015; Sevic et al, 2020; Sharp and Oates, 2019; Truong et al, 2017; Tylka and Calogero, 2019), others focused exclusively on online pornography (Cranney, 2015; Doornwaard et al, 2014), and others included a variety of modalities: mobile phone, tablet, computer, PDA, television, book or magazine, DVD, Internet streaming, downloads, photographs, films (Albright, 2008; Davis et al, 2019; Goldsmith et al, 2017; Kvalem et al, 2016; Morrison et al, 2007; Prokop, 2016; Sharp et al, 2016; Tylka, 2015; Tylka and Kroon Van Diest, 2014; Vogels, 2019; Whitfield et al, 2018) (see Table S1).…”