Test | Intervention groups | Non-intervention groups | H value (Kruskal- Wallis test) | p Value (Kruskal- Wallis test) | Mean difference and 95% Confidence interval | ||||
---|---|---|---|---|---|---|---|---|---|
Pre-tested (A2) | Non pre-tested (B1) | Combined scores | Pre-tested (A1) | Non pre-tested (B2) | Combined scores | ||||
Pre-test | 5.11 ± 1.53 | NA | NA | 5.23 ± 1.88 | NA | NA | NA | 0.82 | 0.12 (−0.53 to 0.77) |
Immediate post-test | 12.82 ± 1.22° | 12.23 ± 1.68¤ | 12.53 ± 2.21 | 12.22 ± 1.58* | 11.38 ± 1.31*°¤ | 11.80 ± 2.28 | 28.293 | < 0.001 | −0.77 (−1.15 to − 0.39) |
Delayed post-test | 11.03 ± 1.86 | 9.92 ± 2.08 | 10.20 ± 2.07 | 10.51 ± 2.14 | 9.8 ± 2.14 | 10.50 ± 2.11 | 7.613 | 0.05 | 0.29 (−0.26 to 0.85) |