Home - IDI LLC, owned and operated by Mitchell R. Hammer, Ph.D. specializes in the assessment and development of intercultural competence based on the Intercultural Development Inventory® (IDI®).
Our Company - IDI, LLC manages the Intercultural Development Inventory (IDI). Our company is a division of Hammer Holdings, Inc, a woman-owned company that also includes ICS Inventory, LLC —offering the Intercultural Conflict Style (ICS) Inventory.
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Products - The Intercultural Development Inventory (IDI) assesses intercultural competence—the capability to shift cultural perspective and appropriately adapt behavior to cultural differences and commonalities. Intercultural competence has been identified as a critical capability in a number of studies focusing on overseas effectiveness of international sojourners, international business adaptation and job performance, international student adjustment, international transfer of technology and information, international study abroad and inter-ethnic relations within nations. The Intercultural Development Inventory is a 50-item questionnaire, available online that can be completed in 15–20 minutes.
IDI Qualifying Seminar - Attendance at an IDI® Qualifying Seminar and consent to a licensing agreement is required to use the IDI Assessment. Participants will receive IDI handouts and materials that include detailed interpretive guidelines and written descriptions of procedures. During the seminar…
- Public Dates & Registration
- Private Qualifying Seminars
Success Stories - Educational institutions and organizations have achieved demonstrated results through the use of the Intercultural Development Inventory (IDI). This work is grounded in…
- IDI Case Studies
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Publications & More - The IDI is a 50-item, theory-based instrument that can be taken either in paper and pencil form or online. The IDI is currently in fifteen languages (Arabic, Bahasa Indonesian, Chinese, Czech, English, Finnish, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Russian, and Spanish).
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Case Study: Changing the Culture of Philanthropy (3.22 minutes)

Intercultural Development Inventory › Case Studies › Changing the Culture of Philanthropy (3.22 minutes)

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An Introduction to the Intercultural Development Inventory (3.28 minutes)
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Workplace Impact of the Intercultural Development Inventory (4.27 minutes)
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Practical Applications of the Intercultural Development Inventory (27:50)

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