Use of positive and negative words in scientific PubMed abstracts between 1974 and 2014 : retrospective analysis

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Vinkers, Christiaan H ; Tijdink, Joeri K ; Otte, Willem M (2015)
  • Publisher: BMJ Publishing Group Ltd.
  • Journal: The BMJ, volume 351 (issn: 0959-8138, eissn: 1756-1833)
  • Related identifiers: doi: 10.1136/bmj.h6467, pmc: PMC4677695
  • Subject: 2320 | Research

OBJECTIVE: To investigate whether language used in science abstracts can skew towards the use of strikingly positive and negative words over time. DESIGN: Retrospective analysis of all scientific abstracts in PubMed between 1974 and 2014. METHODS: The yearly frequencies... View more
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