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Table 5 Two-way sign test comparing student performance on distracter categories

From: A valid assessment of students’ skill in determining relationships on evolutionary trees

  Proximity Similarity Node counting None
Proximity
(60 ± 3.42 %)
    
Similarity
(71 ± 3.16 %)
p < 0.001
(t = 4.89)
   
Node counting
(57 ± 3.46 %)
p = 0.356
(t = −1.50)
p < 0.001
(t = 6.04)
  
None
(69 ± 3.23 %)
p = 0.0012
(t = −5.41)
p = 0.9327
(t = 1.10)
p < 0.001
(t = −6.29)
 
Multiple
(53 ± 3.49 %)
p = 0.001
(t = 2.94)
p < 0.001
(t = 6.50)
p = 0.2211
(t = 1.49)
p < 0.001
(t = 6.19)
  1. Left column: distracter categories with average performance ± standard error (205 students). Cells include p value and t-statistic (df = 204)