Table 11 Summary of participation in the two tranches.

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

Attribute

Tranche 1 (2016–2017)

Tranche 2 (2016–2018)

Number of schools

17

28

Number of classes

40

56

Number of teachers

37

46

Number of students completing pre-test

1152

1505

Number of students completing pre and post-test

988

1309

Number of students completing the pre, post and retention tests

320

523

Number of primary schools

9

24

Number of middle schools

8

4