Show correct / wrong answer in multiple choice quiz

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2 months 3 weeks ago #179950 by mariaa
Hi all,


Many thanks in advance for your help :)


I´ve created a quiz with a multiple choice question.


A1 "Which of the following statistical methods are multivariate?"

SQ001 Cluster analysis

SQ002 Variance

SQ003 Cross-tabulation

SQ004 Multiple regression


The question is answered correctly if (only) question answers "SQ001 Cluster analysis" and "SQ004 Multiple regression" are selected.


After having answered this question, the participant should be able to see if his answer was right or wrong.

I found this solution in the forum: ( I already adjusted the variable names of the question)

{if(A1_SQ001.NAOK == "Y" and A1_SQ002.NAOK == "" and A1_SQ003.NAOK == "" and A1_SQ004.NAOK == "Y"),("You chose this answer correctly.","You chose this answer incorrectly")}


Unfortuntaley it´s not working (no text is shown at all after having answered the question).

In the question summary, the "if " of the function is marked red and the following error message is shown:

"Function does not support 1 arguments Function supports this many arguments, where -1= unlimited : 2,3; Not a valid expression; Conditional processing; if (test, result_if_true[,result_if_false=""])

I´m a limesurvey newbie and didn´t succeed at finding the error.

Do you know how to adjust the code so that it´s working?


Thanks a lot! I attached a picture of the question summary.


Kind regards

Maria
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2 months 3 weeks ago - 2 months 3 weeks ago #179965 by elissa
Hi,
This works for me:
if( ! is_empty(A1_SQ001.NAOK) and is_empty(A1_SQ002.NAOK) and is_empty(A1_SQ003.NAOK) and ! is_empty(A1_SQ004.NAOK), "You chose this answer correctly.", "You chose this answer incorrectly")

Regards

Elzbieta Lesinska
LS voluntary Polish translator and supervisor
Last edit: 2 months 3 weeks ago by elissa.
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2 months 2 weeks ago #180015 by mariaa
Hi Elissa,

I´m sorry for my late response. Unfortunately I got ill and just found the time to have a look at you solution.

Thanks a lot for your answer! Your solution is working for me, too.

Do you know if there is any possibility to show the text "You chose this answer correctly." in green and "You chose this answer incorrectly" in red colour?

If yes, could you please show how the code needs to be adjusted in order to show the different text colours?

Many thanks in advance


Larissa

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2 months 2 weeks ago #180021 by elissa
Hi,
I'm not sure if you can use html code within an expression so my solution is:
<font color="green">{if(!is_empty(A1_SQ001.NAOK) and is_empty(A1_SQ002.NAOK) and is_empty(A1_SQ003.NAOK) and !is_empty(A1_SQ004.NAOK),"You chose this answer correctly","")} </font> <font color="red"> {if(!is_empty(A1_SQ001.NAOK) and is_empty(A1_SQ002.NAOK) and is_empty(A1_SQ003.NAOK) and !is_empty(A1_SQ004.NAOK),"","You chose this answer incorrectly")} </font>
Regards

Elzbieta Lesinska
LS voluntary Polish translator and supervisor
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2 months 2 weeks ago #180027 by DenisChenu

elissa wrote: Hi,
I'm not sure if you can use html code

You can

With this restriction : manual.limesurvey.org/Expression_Manager#XSS_security

And just remind to use different quote
{if(!is_empty(A1_SQ001.NAOK) and is_empty(A1_SQ002.NAOK) and is_empty(A1_SQ003.NAOK) and !is_empty(A1_SQ004.NAOK),"<font color='green'>You chose this answer correctly</font>","<font color='red'>You chose this answer incorrectly</strong> ")}

But for such purpose, i think usage of boostrap class can be better : getbootstrap.com/docs/3.3/css/#helper-classes-colors or getbootstrap.com/docs/3.3/components/#alerts

Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member, professional service on demand (or search sondages pro).
An error happen ? Before make a new topic : remind the Debug mode .
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2 months 2 weeks ago #180095 by mariaa
Thanks a lot for your support! It´s working now with this code.

{if(!is_empty(A1_SQ001.NAOK) and is_empty(A1_SQ002.NAOK) and is_empty(A1_SQ003.NAOK) and !is_empty(A1_SQ004.NAOK),"<font color='green'>You chose this answer correctly</font>","<font color='red'>You chose this answer incorrectly</strong> ")}

@DenisChenu Thanks a lot for your link, this seems to be very helpful for future problems.
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2 months 2 weeks ago #180207 by tammo


Tammo ter Hark at Tools for Research
Proud developers of the TFR Responsive Limesurvey template
toolsforresearch.com/limesurvey-responsive-template
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2 months 2 weeks ago #180302 by mariaa
Hi Tammo,

thanks a lot for this example. Is there any way to have a look at the syntax so that I can see how the evaluation summary on the last page of the survey is created?



Many thanks in advance

Maria
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2 months 2 weeks ago - 2 months 2 weeks ago #180315 by tammo
Hi Maria,

it is an example from the beautiful book by Hans Rosling: Factfulness.

All material form that book and the website gapminder.org is open for sharing.

Please see the attachment.

greetings from the Netherlands,

Tammo ter Hark


Tammo ter Hark at Tools for Research
Proud developers of the TFR Responsive Limesurvey template
toolsforresearch.com/limesurvey-responsive-template
Attachments:
Last edit: 2 months 2 weeks ago by tammo. Reason: Adding remark about attachment.
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2 months 2 weeks ago #180323 by mariaa
Hi Tammo,

thanks a lot for your attachment and all helpful information.

Kind regards

Maria

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