Multianswer, correct answer clarification

Multianswer, correct answer clarification

Mike Mazurkiewicz -
回帖数：5
Hello,
I am trying to find some clarification about using multianswer multiple choice questions in the lesson module. When you have a question with 5 possible answers, where 3 of them are correct, I have some questions about the display of answers/hints. Below is a sample question:
Solitary CN

Which of the following cranial nerve(s) sends taste information to the solitary nucleus?
Multiple Choice - Multianswer
Answer 1: Facial
Response 1: Good, but there may be more than 1 correct choices.
Score 1: 1
Jump 1: Next page
Answer 2: Glossopharyngeal
Response 2: Good, but there may be more than 1 correct choices.
Score 2: 1
Jump 2: Next page
Answer 3: Vagus
Response 3: Good, but there may be more than 1 correct choices.
Score 3: 1
Jump 3: Next page
Answer 4: Trigeminal
Response 4: Wrong nerve
Score 4: 0
Jump 4: This page
Answer 5: Hypoglossal
Response 5: Wrong nerve
Score 5: 0
Jump 5: This page
Does the system do a top to bottom comparison, and at the first mistake, choose that hint to display? And when you do get all 3 correct answers, the module gives you a response, that does not make sense, as in the example above, "Good, but there may be more than 1 correct choices." Is there some method to set the "overall correct answer" for multichoice that would give a response of "Good work, you got them all.", or something like that?

Thanks,
Mike
平均分： -
回复Mike Mazurkiewicz

Re: Multianswer, correct answer clarification

Joseph Rézeau -
Core developers的头像 Particularly helpful Moodlers的头像 Plugin developers的头像 Testers的头像 Translators的头像
Mike,
This is how it should go:

Which of the following cranial nerve(s) sends taste information to the solitary nucleus?
Multiple Choice - Multianswer
Answer 1: Facial
Response 1: Good work, you got them all.
Score 1: 1
Jump 1: Next page
Answer 2: Glossopharyngeal
Response 2:
Score 2: 1
Jump 2: Next page
Answer 3: Vagus
Response 3:
Score 3: 1
Jump 3: Next page
Answer 4: Trigeminal
Response 4: You have either missed one or more of the correct choices or made one or more wrong choices. Try again!
Score 4: 0
Jump 4: This page
Answer 5: Hypoglossal
Response 5:
Score 5: 0
Jump 5: This page
What is very important to understand with this multichoice question type, multianswer option is that feedback only applies to the "global" correctness or incorrectness or the whole reponse, not to individual choices. The "overall correct response" feedback message is taken from the so-called Response (should be called Feedback) field of the first correct student answer and the "overall incorrect response" feedback message is taken from the Response field of the first incorrect student answe. The other Response fields are never used, so should be left empty.
In my opinion this makes the multianswer option not very interesting, as least as far as feedback help is concerned...
Joseph
平均分： -
回复Mike Mazurkiewicz

Re: Multianswer, correct answer clarification

Johnathan Kemp -
Same thing happened to me. This post appeared normal in edit mode but not when I viewed it in the forum. I added comments to the top via the HTML toggle and that seemed to correct things, despite not seeing any offending code. Novice Forum editor. Jonnathan reposted this page. Thanks Joseph, I was asleep at the switch.

Edited by Chris Collman - original submission Tuesday, 28 July 2009, 07:59 AM

平均分： -
回复Johnathan Kemp

Re: Multianswer, correct answer clarification

Joseph Rézeau -
Core developers的头像 Particularly helpful Moodlers的头像 Plugin developers的头像 Testers的头像 Translators的头像

Jonathan,

Something seems to have gone wrong when you posted your message, which is now displayed in a confusing waythoughtful. I think it would be better if Chris deleted your message and you tried to post it again, carefully checking that it is displayed in a "correct" way... The problem very likely arised when you did some copy/paste operation directlly from your Lesson moodle installation...

Right after "Answer 2 =" you pasted a "<td align="right" valign="top">" tag which ruined your display.

Once again may I give this piece of advice which I repeat over and over: be very very careful when doing any copy-paste operation into the moodle HTML editor.wink

Joseph

平均分： -
回复Joseph Rézeau

Re: Multianswer, correct answer clarification

Johnathan Kemp -
Thanks Joseph,

I was not sure if it was going to end up confused or not as every time I re-edited it it showed up correctly. I think this time I'll try firefox - IE7 seemed to throw the odd java script error so maybe that had something to do with it.

Ah well if at first...

There may be a different way of approaching this.
If you use a short answer regular expression question you can provide individual feedback for each analysed response.
Here's an example

Question:
Which of the following are parts of a car?

Tyre, Dog, Apple, Brake, Door

First test for inclusion of any incorrect responses
(note you could test individually for wrong answers if you wanted and give each of them a separate response)

Answer 1 = ++.*(dog|apple).*/i
Score1 = 0 Jump = this page
Response 1 = You have included items which are not part of a car

Next test for failure to include the each of the right responses
Answer 2 = --.*(tyre).*/i
Score2 = 0 Jump = this page
Response 2 = You failed to mention the part where the car meets the road!

Answer 3 = --.*(brake).*/i
Score3 = 0 Jump = this page
Response 3 = If they are the parts on your car how are you going to stop?

Answer 4 = --.*(door).*/i
Score4 = 0 Jump = this page
Response 4 = There's something missing - how will you enter your car?

Now catch the right answer -
Note even though this actually only tests for the inclusion of any one of the right answers, the earlier tests have made sure that none of them have been missed out.

Answer 5 = .*(tyre|brake|door).*/i
Score5 = 1 Jump = next page
Response 5 = Well done you named all three parts of the car?

Finally we have a catch all which the logic of the above answer structure
dictates should never be reachable, but it's a good safety measure for debugging

Answer 6 = .*
Score6 = 0 Jump = this page
Response 6 = If you reached here there is something wrong with my logic!

Hope this helps

Johnathan

平均分： -
回复Mike Mazurkiewicz

Re: Multianswer, correct answer clarification

Chris Collman -
Hi,
This has been said before, when the multianswer box is check in what was a multiple choice Lesson question type, the evaluation changes. There was a recent post in MDL-7683, please vote for an improvement.

All the correct answers must have the same jump and response. All the wrong answers must have the same jump and response if the teacher wants all students to have consistant results. That is how it functions.

MoodleDocs (I just put it in bold) tries to be clear because I did not get it. A couple of years ago (now), I created a 6 answer multianswer question 3 or 4 times, placed the correct and wrong answers in a different physical order in each question in edit mode. I think there is a logic to the jump and response that Lesson selects when the quesiton is judged correct or wrong but I will let Joseph explain it 微笑

The Quiz question type is not much better. A student's score is calculated by adding up all the answers they selected. So if the teacher does not put a negative on an answer, the student can select all the answers, see they selected 2 wrong answers but get 100% credit because they selected both the correct answers. If the teacher puts a negative on the wrong answers, then when a student selects only wrong answers, they will get -100% of the score. Don't know what happens if there are 6 answers, 2 right and 4 wrong 微笑

Sure this does not help. Best to all Chris


平均分： -