Table 3 Comparison means of self-confidence, stress, anxiety, depression and academic progress in intervention and control groups after the intervention by adjusting the effect of the score before the intervention (Pre-test) using ANCOVA analysis
Variable | Source | Sum of squares | df | Mean Square | F | P-value | Partial Eta Squared | Noncent Parameter | Observed power |
|---|---|---|---|---|---|---|---|---|---|
Self-confidence | Corrected Model | 630.87 | 2 | 315.436 | 50.63 |  < 0.001 | 0.602 | 101.26 | 1.00 |
Before intervention | 0.871 | 1 | 0.871 | 0.140 | 0.710 | 0.002 | 0.140 | 0.066 | |
Group | 629.07 | 1 | 629.07 | 100.97 |  < 0.001 | 0.601 | 100.97 | 1.00 | |
Error | 417.41 | 67 | 6.230 | NA | NA | NA | NA | NA | |
DASS Stress | Corrected Model | 159.19 | 2 | 79.59 | 35.018 |  < 0.001 | 0.511 | 70.03 | 1.00 |
Before intervention | 4.67 | 1 | 4.67 | 2.05 | 0.156 | 0.030 | 2.05 | 0.293 | |
Group | 158.78 | 1 | 158.78 | 69.85 |  < 0.001 | 0.510 | 69.85 | 1.00 | |
Error | 152.29 | 67 | 2.27 | NA | NA | NA | NA | NA | |
DASS Anxiety | Corrected Model | 6.74 | 2 | 3.37 | 0.796 | 0.445 | 0.023 | 1.59 | 0.181 |
Before intervention | 6.04 | 1 | 6.04 | 1.42 | 0.236 | 0.021 | 1.42 | 0.218 | |
Group | 1.00 | 1 | 1.00 | 0.238 | 0.627 | 0.004 | 0.238 | 0.077 | |
Error | 283.83 | 67 | 4.23 | NA | NA | NA | NA | NA | |
DASS Depression | Corrected Model | 9.89 | 2 | 4.94 | 1.29 | 0.281 | 0.037 | 2.58 | 0.271 |
Before intervention | 1.66 | 1 | 1.66 | 0.436 | 0.511 | 0.006 | 0.436 | 1.00 | |
Group | 7.23 | 1 | 7.23 | 1.88 | 0.174 | 0.027 | 1.88 | 0.273 | |
Error | 256.38 | 67 | 3.82 | NA | NA | NA | NA | NA | |
Academic progress | Corrected Model | 8529.68 | 2 | 4664.84 | 10.96 |  < 0.001 | 0.247 | 21.92 | 0.989 |
Before intervention | 15.62 | 1 | 15.62 | 0.040 | 0.842 | 0.001 | 0.04 | 0.054 | |
Group | 8415.61 | 1 | 8415.61 | 21.63 |  < 0.001 | 0.244 | 21.630 | 0.996 | |
Error | 26,067.40 | 67 | 389.06 | NA | NA | NA | NA | NA |