Table 2 Comparisons of central tendency and variation of the total counts of 2-min intervals where behavior, as indicated by the collapsed categories for student and instructor codes, was observed by CoP (n = 25) and non-CoP (n = 35) instructors
From: Evidence that communities of practice are associated with active learning in large STEM lectures
| Â | CoP | Non-CoP | Kruskal-Wallis | Effect size | ||||
|---|---|---|---|---|---|---|---|---|
Variable | Mean (median) | SD | Mean (median) | SD | χ2(1) | p | Hedge’s g | [95% CI] |
Student behavior | Â | Â | Â | Â | Â | Â | Â | Â |
Work | 7.92 (7) | 5.04 | 2.45 (1) | 3.17 | 19.41 | <.001 | 1.33 | [0.78, 1.91] |
Receive | 22.18 (23) | 2.94 | 24.07 (25) | 1.36 | 9.33 | .002 | − 0.86 | [ −1.41, −0.33] |
Talk | 7.50 (8) | 4.30 | 7.66 (5) | 5.50 | 0.01 | .93 | 0.39 | [ − 0.12, 0.91] |
Other | 0.84 (0) | 2.21 | 0.90 (0) | 1.60 | 0.86 | .35 | − 0.03 | [ − 0.55, 0.48] |
Instructor behavior | Â | Â | Â | Â | Â | Â | Â | Â |
Present | 18.44 (19) | 3.78 | 22.67 (23) | 2.26 | 19.71 | <.001 | − 1.40 | [ −1.99, − 0.83] |
Guide | 15.14 (16) | 5.20 | 9.94 (10) | 5.63 | 12.20 | <.001 | 0.94 | [0.41, 1.49] |
Other | 4.38 (4) | 3.61 | 2.74 (2) | 1.99 | 2.53 | .11 | 0.33 | [ − 0.18, 0.85] |