His research interests include language assessment, testing & evaluation, assessment literacy, test-taking strategies, statistics, measurement, specs validation, SLA and dynamic assessment. Dr Hidri has also authored two entries (Item analysis and Discrete vs. integrative testing) in TESOL International Encyclopaedia of English Language Teaching, some book chapters on dynamic assessment of reading and speaking. He edited books on Evaluation in Foreign Language Education, Revisiting the Assessment of Language Skills and Teaching Research in the Middle East and North Africa.