TABLE 3.
Statistical parameters for the emotional pictures.
|
Valence Category |
||||||
|
Positive |
Negative |
|||||
| Dimension | M | SD | M | SD | t-value1 | R2 |
| Ratings2 | ||||||
| Valence | 7.52 | 0.18 | 2.52 | 0.35 | 56.33*** | 0.99 |
| Arousal | 4.42 | 0.45 | 6.87 | 0.37 | −18.86*** | 0.90 |
| Physical parameters3 | ||||||
| Contrast | 61.09 | 10.96 | 66.98 | 7.73 | –1.96 | 0.09 |
| Entropy | 7.54 | 0.25 | 7.66 | 0.25 | –1.47 | 0.05 |
| JPEG size | 310837.30 | 123130.90 | 312743.35 | 95487.89 | –0.05 | <0.01 |
| Luminance | 119.31 | 33.27 | 104.84 | 20.42 | 1.66 | 0.07 |
| LABL | 49.45 | 13.04 | 43.56 | 8.52 | 1.69 | 0.07 |
| LABA | 3.03 | 6.97 | 4.15 | 5.75 | –0.55 | 0.01 |
| LABB | 7.75 | 6.34 | 7.86 | 7.49 | –0.05 | <0.01 |
1Pooled t-tests (df = 38) were run in JMP Pro 14. Analyses were performed on aggregated mean values. 2Valence and Arousal were rated on a continuous sliding scale (range: 1–9; Marchewka et al., 2014). Values are based on the entire norm sample. 3Further information is provided by Marchewka et al. (2014). p-values (if p < 0.05) were denoted as follows: ***p < 0.001.