Intercultural Development Inventory (IDI)
The Intercultural Development Inventory (IDI), developed by M.R. Hammer and M.J. Bennett in 1998, is an assessment tool addressing the fundamental attitude of people towards cultural differences. The theoretical basis of the IDI is the Developmental Model of Intercultural Sensibility (Milton J. Bennett, 1986, 1993). It postulates six developmental stages in the perception and approach to intercultural differences. These stages are influenced by experiences, and the contemplation of those experiences. The more complex the construed worldview in relation to cultural dissimilarities, the more sensitive the person is in perception of and approach to these differences.
Employing 50 theory-based criteria, five or six primary levels of intercultural sensitivity (excluding integration) can be measured. This user-friendly tool allows the creation of both a graphic profile of either a group or individuals as well as a text-based interpretation of the prevailing orientation towards cultural differences.
The reliability and validity of the IDI are very high. Due to its academic underpinning and the fact that not attitudes, but cognitive structures are measured, this tool is less susceptible to situational influences.
Knowledge of the stage in which a group or individual currently finds itself is very useful for staffing and organizational needs assessments, educational and training development, and for the evaluation of program effectiveness.
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