{Reference Type}: Journal Article {Title}: Adolescent Athletes' Self-Presentations on Social Media and Their Self-Esteem as Moderated by Their Perceptions of Responsiveness by Others. {Author}: Yang K;Kwon S;Jang D; {Journal}: Percept Mot Skills {Volume}: 131 {Issue}: 1 {Year}: 2024 Feb 27 {Factor}: 2.212 {DOI}: 10.1177/00315125231216020 {Abstract}: Social media has been an increasingly utilized communication tool, and it has gained popularity among adolescent athletes. Our aim here was to investigate whether a positive and honest self-presentation on social media increased adolescent athletes' self-esteem, and we examined the moderating effect of perceived responsiveness. After receiving informed consent of participants and their parents/legal guardians, we recruited 468 adolescent athletes/participants (244 males, 224 females; Mage = 15.39 years, SD = 1.61) through purposive sampling and engaged them in completing face-to-face or online self-report measures of their: (a) self-presentation on social media, (b) perceived responsiveness of others, and (c) Rosenberg self-esteem scales. Given the continuous nature of our moderating variable (i.e., perceived responsiveness), we conducted regression analysis using Hayes's PROCESS macro in SPSS software. A positive self-presentation showed no significant relationship with self-esteem, except when the level of perceived responsiveness was high. Conversely, an honest self-presentation was positively related to higher self-esteem, and the relationship between honest self-presentation and self-esteem was moderated by perceived responsiveness. Our findings extend existing psychological theory into the online environment and have practical implications. These data highlight the link between social media self-presentation and self-esteem among adolescent athletes and illustrate the crucial role of perceived responsiveness in the social media context.