“…Randomized experiments more effectively rule out this possibility, although they can have limited external validity. Experiments have found that exposure to ultra-slender media images results in acute increases in body dissatisfaction and negative affect among young adult females (Cash, Cash, & Butters, 1983;Irving, 1990;Pinhas, Toner, Ali, Garfinkel, & Stuckless, 1999;Posavac, Posavac, & Weigel, 2001;Richins, 1991;Stice & Shaw, 1994). For example, one study found that a 3-minute exposure to thin-ideal images from a fashion magazine, compared with control images, resulted in increased depression, shame, guilt, stress, insecurity, and body dissatisfaction (Stice & Shaw, 1994).…”