Who we are

Launched in 2014, Diglossia is a global language company dedicated to changing lives by fostering language development and literacy throughout the world.

Diglossia's suite of language assessments provide valid and reliable data to make informed decisions when evaluating language program effectiveness, adopting new curricula, and targeting professional development needs.

Using innovative research and technology, our K-16 assessments address the unique needs of the fast-moving language education landscape. We partner with leading scholars and institutions to serve language learners around the world.

Diglossia was founded with a dedication to promoting Arabic literacy in the MENA region. In an effort to address the need for standards-based Arabic literacy assessments, we are honored to partner with The Arab Thought Foundation and the Aribi21 Project in the development of Mubakkir, the first online test to measure literacy development in Arabic early language learners. The test is based on the Arabic Reading Level Standards developed by Dr. Hanada Taha of Zayed University and can be used by both native and non-native speakers.

We also offer TALA, the first Arabic Language Arts assessment designed for native speakers. TALA tests vocabulary, reading and writing against the World Language Initiative Arabic standards. Other offerings include Lexica vocabulary and placement assessments for both English and Arabic speakers.

Our Professional Development workshops offer onsite, online, or blended solutions to help teachers and administrators stay on the cutting edge of best practices in language assessment. In addition to serving the education sector, Diglossia works with employers and industries to provide custom workforce screening and language proficiency tests in both English and Arabic.


Mimi Jett

Chief Executive Officer

Mimi is an education-technology leader with more than 25 years of experience in collaborative innovation that crosses multiple industry sectors, markets and geographies. Prior to co-founding Diglossia in 2014, Mimi was Chief Development Officer and VP of Business Development and Marketing for Avant Assessment.

Her record of success also includes General Manager of netTrekker, as well as strategic management positions with Renaissance Learning and IBM Research, where she was appointed to the elite Institute for Advanced Learning leadership council. Mimi sits on several industry advisory boards, including the Software & Information Industry Association's Education Division Board of Directors, and acts as a mentor for innovative entrepreneurs.

Hassan Bouaida

Country Director, UAE

Originally from Morocco, Hassan graduated from Aix-Marseille University with a Master's degree in Business Administration and Management. As Diglossia's UAE Country Director, Hassan provides our UAE clients with top-notch product training, client support and professional development. As a certified Arabic item rater, Hassan also trains and certifies Diglossia's rater team.

Mo Jemmali

Rater Manager

With a deep background in language teaching, item writing, and professional development, Mo brings over 17 years of experience in language education to his role as Linguist and Test Developer. Fluent in five languages, he received his K-12 education in Tunisia before moving to the U.S. where he graduated from Humboldt State University with a B.S. in Finance and an MBA in Marketing, and earned a CFPP certificate in 2004. In addition to teaching marketing and accounting, Mo launched new Arabic programs at two universities. He also taught French to college, high school, and elementary students. After taking graduate courses in linguistics and language teaching, he developed a successful workshop called "How to read and write anything in Arabic in less than 30 minutes," which continues to be offered at the University of Oregon. As a former Item Writer at Avant Assessment, Mo traveled to Qatar in 2012 to train their elite Arabic teachers in item writing, before leading the effort to develop Qatar's K-12 national Arabic tests.

Bo Shettle

Marketing & Client Support Manager

With over ten years of experience in the education sector, Bo brings a diverse background in marketing and sales support to the Diglossia team. Her goal is to deliver exemplary support to clients and ensure complete client satisfaction from the beginning of the ordering process through the successful completion of test administration. She also manages Diglossia marketing and advertising.