We do not know how you want to calculate the score.
E.g. let's take your xample (multiple question with six subquestions, obviously 3 are correct)
How you count the "correct" answers, you know.
But the respondent will get the same result if he selects all subquestions. So this is not really useful.
a. You could consider to add one point for each correct answer and subtract one point for each wrong answer.
b. Or you only sum points if there is no wrong answer at all.
c. Or you give 1 point, if there is 1 correct answer, 3 points, if there are 2 correct answers and 7 points, if there are all 3 correct answers.
c1. And subtract 2 points for each False answer.
For all these scenarios it would be convenient to use subquestion codes like
C01, C03, C05 for the "Correct" answers
F02, F04, F06 for the "False" answers
Then with the use of the variable "that"
[url]
www.limesurvey.org/manual/ExpressionScri....22that.22_variables
[/url]
a. {count(that.Q1.sq_C)-count(that.Q1.sq_F)}
b. {if(count(that.Q1.sq_F)>0,0,count(that.Q1.sq_C))}
c. {if(count(that.Q1.sq_C)==1,1,if(count(that.Q1.sq_C)==2,3,if(count(that.Q1.sq_C)=

,7,0)))}
c1. {if(count(that.Q1.sq_C)==1,1-2*count(that.Q1.sq_F),if(count(that.Q1.sq_C)==2-2*count(that.Q1.sq_F),3,if(count(that.Q1.sq_C)=

,7-2*count(that.Q1.sq_F),-6)))}
Just create a question if type "equation" and enter your desired function.
But unless we do not know what and how you want to calculate your score (and please, do not try to use "assessment rules", this is stone age and outdated since we have ExpressionManager/Script, which is much more flexible) we can't help better..
Nevertheless you may use assessment values (always usefil, if in a single punch question you would like to have negative weights or the same weight fir different answer options.
Easy to mix, as long as you use the correct access
[url]
www.limesurvey.org/manual/ExpressionScri...#Access_to_variables
[/url]
You access the code by {Q1[.NAOK]} and the assessment value by {Q1.value[NAOK]} [] = optional
Read the manual about ExpressionScript, download and study the sample surveys
[url]
www.limesurvey.org/manual/ExpressionScript_sample_surveys
[/url]
to get familiar with the functions and their syntax.
Joffm