Table 1.
Composition of the study sample at each stage of the RCT.
| Study phase | Number of children | ||
|---|---|---|---|
| Enrolment | |||
| Eligible (all children in S1–S3 attending school on first and second day of school year) | 350 (S1 = 73; S2 = 125; S3 = 152) |
||
| Randomized (to one of three groups) | 318 (S1 = 49; S2 = 125; S3 = 144) |
||
| Excluded (due to group size study design constraints) | 32 (S1 = 24; S2 = 0; S3 = 8) |
||
| Allocation | |||
| Group | Maths tablet | Non-maths tablet | Normal practice |
| Randomized to group | 115 S1 = 25; S2 = 42; S3 = 48 |
90 S1 = 0; S2 = 42; S3 = 48 |
113 S1 = 24; S2 = 41; S3 = 48 |
| Pretested | 112 S1 = 24; S2 = 41; S3 = 47 |
83 S1 = NA; S2 = 37; S3 = 46 |
109 S1 = 23; S2 = 40; S3 = 46 |
| Not pretested (i.e., absent at pre-test) | 1 S1 = 0; S2 = 1; S3 = 0 |
2 S1 = NA; S2 = 2; S3 = 0 |
3 S1 = 0; S2 = 1; S3 = 2 |
| Received intervention | 113 S1 = 24; S2 = 42; S3 = 47 |
85 S1 = NA; S2 = 39; S3 = 46 |
112 S1 = 23; S2 = 41; S3 = 48 |
| Did not receive intervention (i.e., transferred before pre-test) | 2 S1 = 1; S2 = 0; S3 = 1 |
5 S1 = NA; S2 = 3; S3 = 2 |
1 S1 = 1; S2 = 0; S3 = 0 |
| Follow up | |||
| Post-tested | 105 S1 = 22; S2 = 39; S3 = 44 |
82 S1 = NA; S2 = 38; S3 = 44 |
103 S1 = 20; S2 = 38; S3 = 45 |
| Lost to follow up (i.e., absent or transferred by post-test) | 8 S1 = 2; S2 = 3; S3 = 3 |
4 S1 = NA; S2 = 2; S3 = 2 |
9 S1 = 3; S2 = 3; S3 = 3 |
| Analyzed | |||
| Excluded from analysis (i.e., absent at pre-test or post-test or transferred) | 11 (9.6%) S1 = 3; S2 = 4; S3 = 4 |
11 (12.2%) S1 = NA; S2 = 7; S3 = 4 |
13 (11.5) S1 = 4; S2 = 4; S3 = 5 |
| Final sample (i.e., present at pre-test and post-test) |
104 S1 = 22; S2 = 38; S3 = 44 |
79 S1 = NA; S2 = 35; S3 = 44 |
100 S1 = 20; S2 = 37; S3 = 43 |