Bernard, Larry C., Jan Cieciuch, Andrew Lac, Barbara Žuro, Dino Krupić, Michael Richter, Nicolas Silvestrini, and Bettina von Helversen. “A Cross-Cultural Study of Purposive ‘traits of action’: Measurement Invariance of Scales Based on the action–trait Theory of Human Motivation Using Exploratory Structural Equation Modeling”. Studia Psychologica: Theoria et praxis 21, no. 1 (August 4, 2021): 5–29. Accessed April 26, 2024. https://czasopisma.uksw.edu.pl/index.php/sp/article/view/8955.