SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
The Journal of Second Language Writing is devoted to publishing theoretically grounded reports of research and discussions that represent a contribution to current understandings of central issues in second and foreign language writing and writing instruction. Some areas of interest are personal characteristics and attitudes of L2 writers, L2 writers' composing processes, features of L2 writers' texts, readers' responses to L2 writing, assessment/evaluation of L2 writing, contexts (cultural, social, political, institutional) for L2 writing, and any other topic clearly relevant to L2 writing theory, research, or instruction.
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