I would like only (capital) letters (A to Z) possible in an answer (so the respondents are not allowed to give numbers as an answer). The questiontype I selected is: short free text (type S).

The LimeSurvey version I use is 3.17.0+190402

I hope someone knows how to tackle this?

thanks!

Insert a question validation equation something like this:
 
 
- manual.limesurvey.org/ExpressionScript_-...mplemented_functions

Sample survey attached: 

thank you, but this does not work unfortunately. I am still able to give a number for an answer...

Really? In my sample survey, you can advance past the first screen with a number in Q1?

thank you, I think I have put the code in the wrong field. I now used /^([^0-9]*)$/ in the validation field (at general options) to prevent respondents to give a number as an anwer. Now it works!

I don't know why I bother with sample surveys. In the survey I provided, you would have seen it in the "Question validation equation" field.

tpartner wrote:

I don't know why I bother with sample surveys. In the survey I provided, you would have seen it in the "Question validation equation" field.
 

:applause: