The six items of the CTMM-AF scale assess the frequency with which participants think critically about appearance-related media messages. The items for this scale were modified from the CTMM scale [15, 24]. Consistent with the original scale, this adapted measure contains items that represent critical thinking in relation to each of the media literacy domains [4]. Responses to items such as “When I look at ads with thin female models I think about what the people who made the media message want me to believe” were indicated on a 6-point scale from 1 (never) to 6 (always). A total score (range 6 to 36) was calculated from the sum of item responses with higher scores reflecting greater frequency of critical thinking about appearance focused media. Psychometric data for this measure are not available. The CTMM-AF was completed by participants from sample A.