Table 3.
Interaction between creativity dimensions and GNGT as revealed by ANCOVA analysis (cf. Fig. 5)
| F-Statistics | ||||||
|---|---|---|---|---|---|---|
| Creativity dimension | Factors | Sum Sq | Df | F value | p value | pEta² |
| Fluency | Intercept | 0.09 | 1 | 0.02 | 0.897 | 0.001 |
| Baseline values* | 37.06 | 1 | 7.38 | 0.014* | 0.280 | |
| tDCS condition | 0.69 | 1 | 0.14 | 0.715 | 0.007 | |
| d'delta 50 | 0.63 | 1 | 0.13 | 0.728 | 0.006 | |
| d'delta90 | 0.35 | 1 | 0.07 | 0.794 | 0.004 | |
| d’RT50 | 0.06 | 1 | 0.01 | 0.918 | 0.000 | |
| d’RT90 | 0.03 | 1 | 0.01 | 0.936 | 0.000 | |
| Baseline values:tDCS condition | 0.25 | 1 | 0.05 | 0.825 | 0.003 | |
| Baseline values: d'delta 50 | 6.92 | 1 | 1.38 | 0.255 | 0.067 | |
| Baseline values: d'delta 90 | 0.61 | 1 | 0.12 | 0.732 | 0.006 | |
| Baseline values: d’RT50 | 7.89 | 1 | 1.57 | 0.225 | 0.076 | |
| Baseline values: d’RT90 | 0.30 | 1 | 0.06 | 0.810 | 0.003 | |
| tDCS condition:d'delta 50 | 0.13 | 1 | 0.03 | .873 | 0.001 | |
| tDCS condition: d'delta 90 | 2.16 | 1 | 0.43 | 0.519 | 0.022 | |
| tDCS condition: d’RT50 | 0.00 | 1 | 0.00 | 0.980 | 0.000 | |
| tDCS condition: d’RT90 | 4.24 | 1 | 0.84 | 0.370 | 0.042 | |
| Baseline values: tDCS condition: d'delta 50 | 9.16 | 1 | 1.82 | 0.193 | 0.087 | |
| Baseline values: tDCS condition: d'delta 90 | 0.01 | 1 | 0.00 | 0.960 | 0.000 | |
| Baseline values: tDCS condition: d’RT50 | 5.40 | 1 | 1.07 | 0.313 | 0.053 | |
| Baseline values: tDCS condition: d’RT90 | 0.02 | 1 | 0.00 | 0.954 | 0.000 | |
| Residuals | 95.45 | 19 | ||||
| Originality | Intercept | 14.30 | 1 | 2.54 | 0.127 | 0.118 |
| Baseline values | 1.34 | 1 | 0.24 | 0.631 | 0.012 | |
| tDCS condition* | 45.80 | 1 | 8.13 | .010* | 0.300 | |
| d'delta 50 | 8.16 | 1 | 1.45 | 0.243 | 0.071 | |
| d'delta90 | 1.14 | 1 | 0.20 | 0.657 | 0.010 | |
| d'RT50 | 1.07 | 1 | 0.19 | 0.668 | 0.009 | |
| d'RT90 | 1.58 | 1 | 0.28 | 0.602 | 0.015 | |
| Baseline values:tDCS condition | 14.58 | 1 | 2.59 | 0.124 | 0.119 | |
| Baseline values: d'delta 50 | 9.97 | 1 | 1.77 | 0.199 | 0.085 | |
| Baseline values: d'delta 90 | 4.79 | 1 | 0.85 | 0.368 | 0.043 | |
| Baseline values: d'RT50 | 8.97 | 1 | 1.59 | 0.222 | 0.077 | |
| Baseline values: d'RT90 | 8.72 | 1 | 1.55 | 0.228 | 0.075 | |
| tDCS condition:d'delta 50 | 16.04 | 1 | 2.85 | 0.108 | 0.130 | |
| tDCS condition:d'delta 90* | 31.08 | 1 | 5.52 | 0.030* | 0.225 | |
| tDCS condition: d’RT50 | 7.93 | 1 | 1.41 | 0.250 | 0.069 | |
| tDCS condition: d'RT90 | 11.61 | 1 | 2.06 | 0.167 | 0.098 | |
| Baseline values: tDCS condition: d'delta 50 | 9.66 | 1 | 1.72 | 0.206 | 0.083 | |
| Baseline values: tDCS condition: d'delta 90 | 0.10 | 1 | 0.02 | 0.896 | 0.001 | |
| Baseline values: tDCS condition: d'RT50 | 1.07 | 1 | 0.19 | 0.668 | 0.009 | |
| Baseline values: tDCS condition: d'RT90 | 1.57 | 1 | 0.28 | 0.603 | 0.014 | |
| Residuals | 106.96 | 19 | ||||
| Flexibility | Intercept | 1.64 | 1 | 2.85 | 0.108 | 0.130 |
| Baseline values | 1.56 | 1 | 2.70 | 0.116 | 0.125 | |
| tDCS condition | 0.13 | 1 | 0.22 | 0.646 | 0.011 | |
| d'delta 50 | 2.14 | 1 | 3.70 | 0.070 | 0.163 | |
| d'delta90 | 1.19 | 1 | 2.06 | 0.167 | 0.098 | |
| d'RT50 | 0.39 | 1 | 0.68 | 0.420 | 0.034 | |
| d'RT90 | 0.32 | 1 | 0.56 | 0.463 | 0.029 | |
| Baseline values: tDCS condition | 0.86 | 1 | 1.49 | 0.237 | 0.073 | |
| Baseline values: d'delta 50 | 0.01 | 1 | 0.02 | 0.879 | 0.001 | |
| Baseline values: d'delta 90 | 0.07 | 1 | 0.12 | 0.735 | 0.006 | |
| Baseline values: d'RT50 | 0.32 | 1 | 0.56 | 0.464 | 0.028 | |
| Baseline values: d'RT90 | 0.00 | 1 | 0.00 | 0.952 | 0.000 | |
| tDCS condition: d'delta 50 | 1.51 | 1 | 2.61 | 0.122 | 0.121 | |
| tDCS condition: d'delta 90* | 5.71 | 1 | 9.90 | 0.005** | 0.343 | |
| tDCS condition: d’RT50 | 1.29 | 1 | 2.24 | 0.151 | 0.106 | |
| tDCS condition: d'RT90 | 0.59 | 1 | 1.02 | 0.326 | 0.051 | |
| Baseline values: tDCS condition: d'delta 50 | 0.06 | 1 | 0.11 | 0.748 | 0.006 | |
| Baseline values: tDCS condition: d'delta 90* | 4.76 | 1 | 8.25 | 0.009** | 0.303 | |
| Baseline values: tDCS condition: d'RT50 | 0.01 | 1 | 0.02 | 0.879 | 0.001 | |
| Baseline values: tDCS condition: d'RT90 | 1.77 | 1 | 3.07 | 0.096 | 0.139 | |
| Residuals | 10.97 | 19 | ||||
* ** Statistical significance when p value < 0.05