Is online study at Washington International University for masters degrees accredited? Please give details of its accreditation.

It does not appear to be.

U.S. Department of Education Database of Accredited Postsecondary Institutions and Programs (http://www.ope.ed.gov/accreditation/Index.aspx)

It is not accredited offecially but you have to study as offecial student . The management of WIU are lazy and they don't try any efforts to get it accredited.