What does var represent? Are your data currently arranged tall, or wide?
(It's preferable not to use plain text on the list).
Jeremy
On 13/04/07, [email protected] <[email protected]> wrote:
>
>
> I am doing an analysis of a monthly survey. Some of the respondents
> answered the dependent variable question every time it was administered,
> others answered some of the months and others never answered. I would like
> to compare the group that answered the question at least once with the group
> that never answered.
>
> If I use the syntax:
> drop if var==q.
> I am left with all of the unique IDs who answered the question at least
> once.
>
> If i use the syntax:
> keep if var==q.
> I get all of the unique IDs who never answered and those that occasionally
> answered.
>
> How can I get the group that never answered without the group of occasional
> responders "leaking into" the group?
>
> Thank you,
> Karen Dunn Lopez, RN, PhD(c)
> The University of Iowa
> College of Nursing
> [email protected]
>
--
Jeremy Miles
Learning statistics blog: www.jeremymiles.co.uk/learningstats
