Hi,

I'm trying to do the following.

question 1: what is your age?
question code: SCREENC
type: numerical input

question 2: age ranges
code: SCREENC1
type: List question?

Trying to code question 1 into the following age ranges

1 Under 18
2 18 - 24
3 25 – 29
4 30 – 34
5 35 – 44
6 45 – 49
7 50 – 54
8 55+

I've put together this formula which i stuck in the question field on question 2

{SCREENC1=if(SCREENC.NAOK <= 18, "1", if(SCREENC.NAOK < 25, "2", if(SCREENC.NAOK < 29, "3" ,if(SCREENC.NAOK < 34, "4", if(SCREENC.NAOK < 44, "5", if(SCREENC.NAOK < 49, "6", if(SCREENC.NAOK < 54, "7" ,if(SCREENC.NAOK > 55, "8"))))))))}

I also need to set quotas on these age ranges so I don't think it can be an equation question. My formula doesn't seem to work, i get no answers in the 2nd question when i run it. What am I doing wrong? is there a better way to do this?

The formula needs to be in an equation question placed after SCREENC1. Also both SCREENC1 and the equation question need to be in a group following the SCREENC group because the equation is fired when the page loads.

I've tried setting it up that way with no luck getting it to work. See attached. I'm thinking I have an error in the equation but cant figure it out. I've been referencing this old forum question www.limesurvey.org/forum/design-issues/8...n-out-of-age-numeric

also if the age range question SCREENC1 and the equation question are hidden will they still run and can i create quotas on SCREENC1?

Thanks for your help!

Two problems...

1) If you want to dynamically manipulate questions, you cannot hide them with the advanced question setting - in that case, they are never rendered in the HTML so cannot be manipulated. If using version 2.5 or newer they can be hidden via CSS by adding a question class "hidden".

2) You forgot to add the final (empty) condition in your nested IF statements seen here with line-breaks inserted for clarity:
Here's a copy of your survey with those items fixed: