Union College, NOVA Univesity, and Walden University are all possible
answers for those of us who want to pursue Doctoral Study but can't
leave jobs/family/community to do it, and don't have a flexible doctoral
program nearby. Union is a particularly
well known program, emerging from the Union of experimenting Colleges,
and attracting a generally very interesting mix of nontraditional
adult students. There are references that may assist your advisee:
John Bear has collected information on nontradional programs and
publishes a new edition of his book every few years.
SUNY Empire State College (where I am located) has published a
directoryh of "INNOVATIVE GRADUATE PROGRAMS: Accredited American Colleges
and Universities"; SUNY Empire State College, One Union Avenue, Saratoga
Springs, NY 12866-4391 -- its heavily loaded with Master's program
but descripes some doctoral level programs.
Hope this information is helpful.