The Developmental Changes In Number Sense Throughout The School-Age
Figure 3: Class difference in total score variance, median response time and response time variance (from left to right). The x-axis is the number of grade. Green line - the difference between the maximum and minimum value within each grade, black line - the interquartile range, red line - standard deviation for each grade.
![Class difference in total score variance, median response time and response time variance
(from left to right). The x-axis is the number of grade. Green line - the difference
between the maximum and minimum value within each grade, black line - the interquartile
range, red line - standard deviation for each grade.](https://www.europeanproceedings.com/files/data/article/93/3775/ICPE2018F093.fig.003.jpg)