IDI Reliability Data

The Developmental Orientation (DO) and Perceived Orientation (PO) scores of the IDI have reliability of .83 and .82, which is considered good.

For information on the reliability of the IDI see section 2.2.1 on p. 4 of the following article:

Hammer, R. (2011). Additional cross-cultural validity testing of the Intercultural Development Inventory. International Journal of Intercultural Relations, 35, 474-487.