4.2 Analysis of standard deviation
Let’s calculate the standard deviation of group A, group B, group C and group D. This time, the individual value of characteristic 1 and 2 in scene 1, scene 2, and scene 3 is not mass but index.
Therefore, I count the number of characteristics to derive the arithmetic average, then subtract the arithmetic average from the individual values to derive the average of square sum set, and finally extract the square root. (Formula 2)
What does the dervied number of standard deviation in each group represent? If the meaning of these numbers could be explained, that would provide some valuable insight.
花村嘉英（2017）「日本語教育のためのプログラム」より英訳 translated by Yoshihisa Hanamura