certain kinds of questionnaires are constructed with (some) purely boolean questions as well.
- thomas On 09/02/2011 09:26, Derek Meyer wrote: > > There may be some genuine boolean data. For example, either consent > has been given for a procedure or it has not. NULL in this case = false. > > * * -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openehr.org/mailman/private/openehr-technical_lists.openehr.org/attachments/20110209/fe1deecf/attachment.html>
