I assume you're using formfields - the technique you're trying to implement doesn't work with content controls or Active-x controls..

You need to use a cross-reference to the BNTYPE bookmark in the IF field:
{IF{REF BNTYPE}= Manager 1 0}
or:
{IF{REF BNTYPE}= Manager True False}
The BNTYPE dropdown also needs to have its 'calculate on exit' property checked.

Note: The field brace pairs (i.e. '{ }') for the above example are all created in the document itself, via Ctrl-F9 (Cmd-F9 on a Mac); you can't simply type them or copy & paste them from this message. Nor is it practical to add them via any of the standard Word dialogues.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]