# Human-AI Co-Drawing: Studying Creative Efficacy and Eye Tracking in Observation and Cooperation
## 4 Results
### Analysis of Eye Movement Data
#### 4.1.2 Analysis of Variance of Data  
First, the data related to occlusion decisions and occlusion handwriting were filtered and grouped by cross-screen type. Then the analysis of variance (ANOVA) was performed. The results of the analysis of variance (ANOVA) have been calculated, from which we can see the effect of different cross-screen types and occlusion decisions and occlusion hand-drawings on the following variables. For the total interval duration (duration of the interval), the effect of cross-screen type was F(1,157) = 2.65, \(p\) = 0.106, indicating no significant difference at the 0.05 level of significance. The effect of time type was F(1,157) = 2.86, \(p\) = 0.093, indicating no significant difference at the 0.05 level of significance, either. The interaction of cross-screen type with time type was F(1,157) = 1.48, \(p\) = 0.225, indicating no significant interaction. For the number of whole fixations, the effect of cross-screen type was F(1,157) = 1.95, \(p\) = 0.164, indicating no significant difference. The effect of time type was F(1,157) = 10.24,  
Figure 6: Histograms of task time and eye movement data (task time, number of gaze points, gaze duration, and mean pupil size). \(p=0.0017\), showing a significant difference, indicating that different time types have a significant effect on the number of fixations. The interaction between cross-screen type and time type was F(1,157) = 1.50, \(p=0.223\); no significant interaction. The ANOVA results were also analyzed for the remaining two variables (mean gaze duration and mean pupil diameter). The results of the analysis of variance (ANOVA) showed that there was also a significant effect of different cross-screen types and occlusion decisions vs. occlusion hand-drawings on the following two variables. For the average duration of whole fixations, the effect of cross-screen type showed a significant difference: F(1,155) = 18.56, \(p<0.0001\). The effect of task type also showed a significant difference: F(1,155) = 18.58, \(p<0.0001\). The interaction between cross-screen type and time type was F(1,155) = 18.00, \(p<0.0001\); significant interaction. For the average whole fixation pupil diameter, the effect of cross-screen type was F(1,155) = 10.40, \(p=0.0015\), indicating a significant interaction. The effect of task type showed a significant difference: F(1,155) = 5.79, \(p=0.0173\). The interaction between cross-screen type and task type was F(1,155) = 2.93, \(p=0.089\), indicating no significant interaction at the 0.05 level of significance. In summary, the effects of cross-screen type and task type on total interval duration, number of gaze points, mean gaze duration, and mean pupil diameter were significant in the occlusion decision versus occlusion hand-drawing situation. In particular, the mean gaze duration and mean pupil diameter variables showed significant differences across task types and screen types. These results can help to provide a deeper understanding of user behaviour and cognitive load under different visual tasks and cross-screen conditions. To make these comparisons, two steps are required. For the cross-screen condition, compare decision and hand-drawing time differences, gaze point differences, gaze duration differences, and pupil diameter differences between the occluded and non-occluded conditions. For the non-cross-screen case, the same comparisons are performed. First, filter the data and perform the analyses for the cross-screen case and then the non-cross-screen case. We will use analysis of variance (ANOVA) to examine these differences and for the analyses for the cross-screen case. For the cross-screen case, the results of the analysis are as follows. For the duration of interval, the effect of time type was F(1,79) = 0.162, \(p=0.688\), indicating that there was no significant effect of occlusion vs. non-occlusion on the total interval duration in the cross-screen condition.