Mandy Salzig is a Ph.D. student in the second year of her doctoral studies in Psychology. She holds a Master's degree in Psychology from the University of Luxembourg. Mandy has been working for several years as a student assistant for the team of Pr. Dr. Samuel Greiff. She also worked as a test administrator for the international PISA study for the Luxembourgish Government. Her Ph.D. topic is on multilingualism and metacognitive thinking in students. Mandy also took part in the development of the training for complex problem-solving.