“…At the same time, self-report measures have been successfully used in many previous studies on antecedents and consequences of adolescents' social media use (e.g., Barker, 2009;de Vries et al, 2016;Gross, 2004), including sexy self-presentation (e.g., Baumgartner et al, 2015). Moreover, the self-report measures of (exposure to) sexy self-presentations used in the present study have shown good construct validity, as they have been associated with other types of sexual media use (e.g., reality TV, Vandenbosch et al, 2015) and sexual attitudes (e.g., instrumental attitudes toward sex and notions of women as sex objects, van Oosten et al, 2015a) in previous studies using the same data-set and in a recent study using a different sample (van Oosten & Vandenbosch, 2017). Similarly, our self-report measure of hypergender orientation is based on validated self-report scales for hyperfemininity and hypermasculinity among adults (Mosher & Sirkin, 1984;Murnen & Byrne, 1991).…”