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Grandiose exhibition
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selfiepm/otherpicspm
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How many selfie/other pictures shared per month
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“Categories emerged … on Instagram. Personal promotion, brand promotion, and sponsored promotion … increase their popularity… digital reputations” (Alshawaf and Wen 2015)
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postfreqpm
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Frequency of sharing posts per month
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“narcissists have more Facebook friends and tend to post more provocative material” (Bernarte et al. 2015)
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pconvsspm; nconvspm
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How many positive and negative conversations per month
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“The relation between narcissism and disagreeableness increases when self-esteem is taken into account” (Holtzman et al. 2010)
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Popularity
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followerspm
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How many followers per month
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“Instagram Leaders … have more followers than they are following” (Farwaha and Obhi 2019; Utz et al. 2012)
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likespm
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How many likes per month
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We chose the number of “likes” as the index of popularity of a post (Zhang et al. 2018)
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htagspm
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Count the number of posts which had one or more hashtags (boolean)
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“… use hashtags to make their professional identity searchable … promote their identity as affiliated.. wider professional field” (Farwaha and Obhi 2019, p. 2012)
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