I added a set of radio buttons to my form, but when I deployed, it showed up as a drop-down list

The Use pulldown when item count exceeds study-level style setting is set to five by default. As a result, if you add a set of radio buttons (a codelist) to your form, and it contains more than five radio buttons (codelist items), it appears in Oracle Health Sciences InForm as a drop-down list when you deploy your study.

To change the setting for a single codelist instance, use the control-level styles. For more information, see Set the appearance of a single study object (control styles).