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Table 2 The average increase in percentage of correct answers/item per question/item

From: Education on electrical phenomena involved in electroporation-based therapies and treatments: a blended learning approach

  Item difficulty—before [%] Item difficulty—after [%] Difference (improvement) [%]
All students/participants (n = 47) 73.6 ± 15.5 87.7 ± 8.5 14.1 ± 7.0
El. engineers (n = 13) 80.8 ± 13.2 93.1 ± 8.5 12.3 ± 4.7
Natural scientists (n = 34) 70.9 ± 17.5 85.6 ± 9.3 14.7 ± 8.2
  1. The average increase in percentage of correct answers/item (averaged through all 10 questions/items), the after-before difference for all participants and separately for all participants, and separately for both experimental groups (i.e. electrical engineers and natural scientists)