manasghosh81
commented
8 years ago @madhumitadey : We believe that calculating chapterwise avg percentage as a mean of the task average percentage is wrong. Please check some sample data in the attached excel. If you take Chapter 01 in the attached excel, there are 2 tasks, place value and even & odd numbers.
Here are the scores
Subha Dey1: Place value = 8/15 Subha Dey1: Even & odd = 8/10
Subha Dey2: Place value = 11/15 Subha Dey2: Even & odd = 6/10
Subha Dey3: Place value = 4/15 Subha Dey3: Even & odd = 10/10
Thus Average task wise:
- Place value = (total of all task scores)/(number of students) = (8+11+4)/3 = 8 (rounded)
- Even & odd = (total of all task scores)/(number of students) = (8+6+10)/3 = 8 (rounded)
Thus Average % task wise:
- Place value = average / full marks = 8/15= 53%
- Even & odd = average / full marks = 8/10 = 80%
Now you are saying chapterwise average (%) should be calculated as the mean of above percentage which means (53+80)/2 % = 67% This translates to absolute score of 67% of (full marks for chapter) = 0.67X25 = 17 (rounded) Thus with 3 students, total marks obtained in chapter = 17X3 = 51
But in reality the students have obtained total marks for the chapter as (8+8+11+6+4+10) = 47
So the average chapter score calculation should be (total marks obtained by all students for all tasks in the chapter) / (total number of students) and the percentage should be calculated as (this average score) / (full marks in the chapter)
mayank2k2
sumitmago
somabanerjee
Login using Teacher credentials. Go to reports page. Go to class performance report.
The Chapter-wise Score Report and Task-wise Score Report is not generated correctly.
For example see the screenshot below. Here, the Task-wise average scores of the two tasks are shown.
Now, the Chapter-wise score of this task is calculated by adding the scores of individual tasks in the numerator (i.e., 0+1 = 1) and total score of tasks in the denominators (10+24=34), and the score is displayed as 1/34 (see screenshot below). This is logically incorrect.
As per the FSD (Pg 94-97), the Task-wise average scores of all tasks should be converted to percentages. Then the average of the percentages of all tasks should be calculated and displayed in the Chapter-wise Score Report. Therefore, the second column of Chapter-wise Score Report is invalid (as the calculation is logically incorrect) and should be deleted.