Ramadhan Dwi Marvianto, S.Psi., M.A., is a young lecturer in the field of Psychometrics. Marvi completed his undergraduate (S1) and master’s (S2) studies at the Faculty of Psychology, Universitas Gadjah Mada, with a specialization in Applied Psychometrics. During his educational studies, he participated extensively in seminars and workshops on statistics and psychometrics, both as a speaker and a participant. Marvi’s participation is a form of commitment to deepen and disseminate the knowledge of statistics and psychometrics that he possesses.

Muhammad Dwirifqi Kharisma Putra, S.Psi., M.Si., is an academic and researcher in the field of psychometrics. Currently, he is pursuing a doctoral degree in the Doctoral Program in Psychology at Universitas Gadjah Mada. (UGM). Before that, he completed his undergraduate education at the Faculty of Psychology at UIN Syarif Hidayatullah Jakarta (2010-2014) and his master’s degree in psychometrics at the Master of Science in Psychology at UIN Syarif Hidayatullah Jakarta (2015-2016) with a thesis titled “The Influence of Sample Size and Intraclass Correlation Coefficients (ICC) on the Bias of Parameter Estimation in Multilevel Latent Variable Modeling: A Study Using Monte Carlo Simulation.”

Elga Andriana, S.Psi., M.Ed., Ph.D. is an academic at the Faculty of Psychology, Universitas Gadjah Mada (UGM). Dr. Elga holds a Bachelor of Psychology degree (S.Psi.) from the Faculty of Psychology at Universitas Gadjah Mada, a Master of Education (M.Ed.) from Monash University, Australia, and a Ph.D. from the University of Sydney, Australia. With a strong educational background, he demonstrates his dedication to pursuing knowledge and expertise in the fields of psychology and education.

Dr. Yuli Fajar Susetyo, S.Psi., M.Si., Psychologist completed his undergraduate, master’s, and doctoral education at Gadjah Mada University. Dr. Yuli’s expertise includes the field of Psychology, specifically Educational Psychology and Adolescent Psychology. He has research interests and experience in character development, motivation, learning, mental health in schools, self-leadership, self-regulation in learning, and well-being. His expertise is not only beneficial in the academic realm but also has practical applications in improving the quality of education, student resilience and character, learning practices, and mental health in schools, demonstrating his dedication to the development of character, achievement, and student well-being.

Ammik Kisriyani, S.Psi., M.A., is an academic and researcher in the field of Educational Psychology and Development. She is currently pursuing a doctoral degree at the University of Sydney, Australia. Ammik completed her undergraduate studies at the Faculty of Psychology, Universitas Gadjah Mada, Yogyakarta, and then continued her master’s education at the University of Birmingham, England, focusing on Inclusion and Special Educational Needs.