|
本帖最后由 c_sea 于 2010-10-19 22:47 编辑
c_sea 发表于 2010-10-19 13:56 
回复 snowspring 的帖子
Ontario has received follow numbers of new CSIA in season 2009/2010 - 1 level 4, 20 level 3, 164 level 2, 800(approximated) level 1
I believe it must be similar data in the other seasons. This data shows some interesting ratio ,
Progrssion Possibility
Level 0 to 1 unknonw 1/n
Level 1 to 2 1/5
Level 2 to 3 1/8
Level 3 to 4 1/20
The possiblity for a person to be a level 4 P=1/n*1/5*1/8*1/20 =1/800n <=1/800
If n=2 , which is high pass ratio in level 1 , P=1/1600
If n=3 , which is more realistic in level 1, P=1/2400
Great , I like this data. It teaches us that people have to have sufficient patient plus have to be relax in any CSIA test - no matter it is passed or need retest.
Good luck to everyone!
|
|