Skip to main content

Table 1 Comparison of summary data from the listwise deletion and imputed data

From: A comparison study of human examples vs. non-human examples in an evolution lesson leads to differential impacts on student learning experiences in an introductory biology course

   Content
Knowledge
Relevance Engagement Discomfort I-SEA:
Human Evo
Class Grade
(0–11) (0–24) (0–20) (0–12) (0–32) (0–4.0)
Pre Post Course Lesson Course Lesson Course Lesson - -
Animal Listwise Deletion 3.93 (1.94)
(n = 249)
4.06 (1.93)
(n = 186)
13.4 (4.71) (n = 252) 14.3 (4.40) (n = 187) 11.5 (4.52)
(n = 248)
11.2 (4.16) (n = 188) 1.96 (2.37) (n = 252) 2.28 (2.64)
(n = 187)
22.8 (5.98)
(n = 263)
3.04 (0.91)
(n = 319)
Imputed Data 3.70
(n = 70)
4.19
(n = 133)
13.3
(n = 67)
14.7
(n = 132)
11.4
(n = 71)
11.6
(n = 131)
2.46
(n = 67)
2.58 (n = 132) 22.8
(n = 56)
No missing values
Human Listwise Deletion 3.94 (2.03)
(n = 269)
4.59 (2.39)
(n = 173)
13.3 (4.25)
(n = 271)
13.9 (4.62)
(n = 172)
11.5 (4.38)
(n = 269)
10.9 (4.61)
(n = 171)
1.87 (2.21)
(n = 270)
1.76 (2.31)
(n = 172)
23.9 (5.69)
(n = 284)
3.15 (0.79)
(n = 354)
Imputed Data 3.94
(n = 85)
4.30
(n = 181)
13.3
(n = 83)
13.9
(n = 182)
11.2
(n = 85)
10.9
(n = 183)
1.99
(n = 84)
2.09
(n = 182)
26.9
(n = 70)
No missing values
  1. Means and number of data points are included for both listwise deletion and imputed data. Standard errors for the listwise deletion data are in parentheses