Millisecond Forums

Yes, understood. Thanks for the clarification. Should be doable. However, here's what I don't "get": If you are ranking 2 out of 4 elements, you only have *two ranks* to assign (1 and 2). What sense does it make to allow for something like 1 and 3? Obviously, there *is* an element in this case with *implicit* rank 2 -- otherwise you would not have been able to assign rank 3 to another element.

Yes and let's say that we want to force participants to choose only two of four (e.g. 1 & 2 or 1 & 3 but no 1 & 1 nor 1, 4, & 3).In that case I can't use your script directly because in it participant have to "use" every answer exactly once. I need to change it to let participants to choose only two of four answers (no matter which) and not to repeat the answer chosen before.

I don't understand the question, I'm afraid.The scripts I referred you to enforce that every available rank (1,2,3 and 4 in the examples) is assigned *exactly once*.

Thanks Dave,

If you want to build a drag & drop mechanic, study the "Tower of London" script available from the Task Library. Be warned: This isn't trivial.If you want to go with the "assign numbers" option, consider using <surveypage>s with a bunch of <caption>s, <textbox>es, <dropdown>s plus validation logic. See e.g. http://www.millisecond.com/forums/FindPost7561.aspx & https://www.millisecond.com/forums/FindPost7524.aspx