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## Negative Scoring for questionmult

Added by VInay Wagh 11 months ago

- All blank -- 0 marks
- Only and exactly the correct ones are marked -- 1 mark
- All other cases (i.e. partially correct, partially incorrect) -- MINUS half marks.

I am unable to achieve the combination of the parameters in scoring. My (one of the) attempt(s):

\scoringDefaultM{b=1,m=-0.5,p=-0.5,e=-0.5,MAX=1}

Can someone help me with the options?

Thanks

-- VInay

If my question has A and D are correct options.

- If a candidate marks ONLY A and D -- he gets 1 mark
- If a candidate marks ONLY A -- he gets MINUS half mark
- If a candidate marks A and C -- he gets MINUS half mark
- If a candidate marks B and C -- he gets MINUS half mark
- If nothing is marked -- he gets ZERO

### Replies (3)

#### RE: Negative Scoring for questionmult - Added by Alexis Bienvenüe 11 months ago

You can try something like that:

`\scoring{b=0,m=-2,d=1,p=-0.5}`

`b=0`

to score zero points when properly ticked or not`m=-2`

to score -2 points when an correct answer is not ticked or a wrong anser is ticked

Then the score will be 0 when all is OK or ≤-2 when something is wrong.

Then `d=1`

adds 1 to the total score, so that the score is now 1 when all is correct, or ≤-1 when something is wrong.

Then `p=-0.5`

sets a ceiling value to -0.5, leading to the required result.

Alternatively, you can use a formula:

`\scoring{formula=(N==NBC+NM-NMC ? 1 : -0.5)}`

Here, `N`

is the number of answers, `NB`

number of correct answers, `NBC`

number of correct ticked answers, `NM`

number of wrong answers, `NMC`

number of wrong and ticked answers.

#### RE: Negative Scoring for questionmult - Added by Alexis Bienvenüe 11 months ago

Note that with a recent version of AMC you can test your scoring strategy with this window:

test.png (47.9 kB)

#### RE: Negative Scoring for questionmult - Added by VInay Wagh 11 months ago

Thanks @Alexix, for a quick response! The strategy given in your reply works flawlessly! Exactly the way I wanted it to work...

Regarding the "Test Scoring", it took me some time to understand `how to use', but it was smooth once it clicked! A frank feedback: the modus operandi is a bit less intuitive!

Thanks once again!

-- VInay

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