Proposes a graphical analysis and presentation system for fitting, evaluating, and reporting multilevel longitudinal models.
investigated the properties of DIF indices in the differential functioning of items and tests (DFIT) framework and further tested the power of item parameter replication method (IPR) in identifying biased items within the item response theory (IRT) paradigm.
Explores the history of brand advertising and its implementation in the emergence market economy of post-soviet Ukraine, specifically the effects of western marketing campaigns on the fabric of interpersonal relations and communication.