"...Disturbingly, nowhere in her bio or anywhere else I can find does it list Staninger's educational background insofar as what schools she attended and what her actual degree is."
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I did note one academic reference in her bio:
"Her former academic appointments include Research Coordinator and Assistant Professor for the Research Department at the former Capital University of Integrative Medicine, Washington, D.C"
Since that was the only reference, I assumed that it must surely have been the most prestigious appointment. But then I found out that Capital University was a non-accredited school which operated for about a decade before closing its doors in 2006. Not so impressive after all.
Looking further at that bio, I see that Staninger lists RIET-1 next to her name, thus it had to be something that was important and likely recognizable to other professionals. But when I did a Google search for "RIET-1", the only thing that came up was pages with references to Hildegarde Staninger. I thought perhaps that was an accreditation given by the National Registry of Environmental Professionals (NREP), since she prominently touts her membership with that organization. However, I could find no such designation among the various ones that the NREP. Not only that, but when I did a member search on the NREP site for Hildegarde Staninger, it returned no record found.