'.
- ' #Stdnts: Total Number of Students opened the problem. '.
- ' Tries : Total Number of Tries for solving the problem. '.
- ' Mod : Maximunm Number of Tries for solving the problem. '.
- ' Mean : Average Number of the tries. [ Tries / #Stdnts ] '.
- ' #YES : Number of students solved the problem correctly. '.
- ' #yes : Number of students solved the problem by override. '.
- ' %Wrng : Percentage of students tried to solve the problem but'.
+ ' #Stdnts: Total Number of Students opened the problem. '.
+ ' Tries : Total Number of Tries for solving the problem. '.
+ ' Mod : Maximunm Number of Tries for solving the problem. '.
+ ' Mean : Average Number of the tries. [ Tries / #Stdnts ] '.
+ ' #YES : Number of students solved the problem correctly. '.
+ ' #yes : Number of students solved the problem by override. '.
+ ' %Wrng : Percentage of students tried to solve the problem but'.
' still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ] '.
-# ' DoDiff : Degree of Difficulty of the problem. [ Tries/(#YES+#yes+0.1) ] '.
- ' DoDiff : Degree of Difficulty of the problem. [ 1 - ((#YES+#yes) / Tries) ] '.
- ' S.D. : Standard Deviation of the tries.'.
+# ' DoDiff : Degree of Difficulty of the problem. [ Tries/(#YES+#yes+0.1) ] '. Kashy formula
+ ' DoDiff : Degree of Difficulty of the problem. [ 1 - ((#YES+#yes) / Tries) ] '. #Gerd formula
+ ' S.D. : Standard Deviation of the tries.'.
'[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1)'.
' where Xi denotes every student\'s tries ] '.
- ' Skew. : Skewness of the students tries.'.
- ' [ (sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3) ] '.
-
-# ' Dis.F. : Discrimination Factor. [ Sum of Partial Credits Awarded / Total Number of Tries in %27 upper and lower students]'.
+ ' Skew. : Skewness of the students tries.'.
+ ' [ (sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3) ] '.
+ ' Dis.F. : Discrimination Factor: A Standard for '.
+ 'evaluating the problem according to a Criterion '.
+ ' [Applied Criterion in %27 Upper Students - '.
+ 'Applied the same Criterion in %27 Lower Students] '.
+ ' 1st Criterion for Sorting the Students: '.
+ 'Sum of Partial Credit Awarded / Total Number of Tries '.
+ ' 2nd Criterion for Sorting the Students: '.
+ 'Total number of Correct Answers / Total Number of Tries'.
'