Ölçek Çeşidi:
Uyarlama
Kaynak/Referans:
Boysan, M. (2019). An integration of quadripartite and helplessnesshopelessness models of depression using the Turkish version of the Learned Helplessness Scale (LHS). British Journal of Guidance & Counselling. doi: 10.1080/03069885.2019.1612033
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