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ABSTRACT& Online communities suffer serious newcomer attrition. This paper explores whether and how early activity diversity -the degree to which a newcomer engages in a wide range of a site's activities in the first session -is associated with their longevity. We introduce a metric (DSCORE) to characterize early activity diversity in online sites and run our analyses on an online community 'MovieLens'. We find that DSCORE is significant both by itself and in conjunction with a measure ofdoi:10.1145/2818048.2820009 dblp:conf/cscw/KarumurNK16 fatcat:yoihaiipcjdfpdgcxzl36lxzlm