Ordinate Corporation. (2008). Internationally recognized English language exams: How they map to the Common European Framework (CEFR) Levels. Unpublished manuscript.
Ordinate Corporation. (2007). Test comparisons: A comparison of three internationally recognized tests of spoken English. Unpublished manuscript.
Pearson, Inc. (2008). Consistency of Versant English Test scores over multiple administrators. Unpublished manuscript.
Bernstein, J., Rosenfeld, E., Townshend, B., & Barbier, I. (2004, June). An automatically scored spoken Spanish test & its relation to OPIs. Paper presented at IAEA 2004, Pennsylvania, PA.*
Balogh, J., Bernstein, J. & Suzuki, M. (2006, July). Automatically scored spoken language tests for air traffic controllers and pilots. Paper presented at International Aviation Training Symposium 2006, Oklahoma City.*
*Formerly part of Harcourt Assessment, Ordinate has been combined with Pearson. PhonePass SET-10 is now the Versant English Test. The Spoken Spanish Test (SST) is now the Versant Spanish Test.