Table 4 Results of Wilcoxon rank-sum tests comparing the difference between LOESS residual scores of student-centred and teacher-centred activities in Lesson 2 with Cliff’s d effect size values.

From: A RCT for assessment of active human-centred learning finds teacher-centric non-human teaching of evolution optimal

Tranche

P-value

Cliff’s d

Mean ± SD SoW 1 and 2 (student-centred)

Mean ± SD SoW 3 and 4 (teacher-centred)

1

1.80 × 10−5

−0.21

95% Cl: −0.30 to −0.11 (small)

−0.69 ± 2.74

N = 485

0.46 ± 2.96

N = 503

2

0.15

0.06

95% Cl: −0.02 to 0.16 (negligible)

0.32 ± 3.40

N = 710

8 × 10−3 ± 3.55

N = 599

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